Formula's in Numbers

Hi
I have a large spreadsheet which includes the date of the job in column B and the number of hours completed in a number of different categories from columns K to AD. The most recent job is in row 24 through to the oldest in row 404. I need a formula to return the most recent date of the job that any hours were completed in one of the different categories (K to AD). The formula I have written so far in K16 is:
=IF(K24>0,B24,IF(K25>0,B25,IF(K26>0,B26,IF(K27>0,B27,IF(K28>0,B28,IF(K29>0,B29,I F(K30>0,B30,)))))))
This will be a very long formula to complete for the 380 rows I have so far and it is growing every day. Does anyone know of a better way to do this??
Thanks in advance for any help.

=INDIRECT(ADDRESS(23+COUNT(K$24:K$404),2))
would do the trick if there is no hole in the set of time values.
Yvan KOENIG (from FRANCE samedi 4 juillet 2009 11:38:42)

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Yvan KOENIG (VALLAURIS, France) samedi 5 novembre 2011 14:25:14
iMac 21”5, i7, 2.8 GHz, 4 Gbytes, 1 Tbytes, mac OS X 10.6.8 and 10.7.2
My iDisk is : <http://public.me.com/koenigyvan>
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Message was edited by: lawero
Message was edited by: lawero

lawero wrote:
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Message was edited by: schubladenschrank
Message was edited by: schubladenschrank

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Formula's in Numbers

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