Please can someone help me -

I have a Calc Spreadsheet where I use rows of unordered numbers (72 columns per row). at the end of each row, I use the LARGE functions to establish the 4th 3rd 2nd and 1st

largest numbers in that row eg: =LARGE($D100:$AN100;2) (=the 2nd largest number in the row). I need to know which Column the number it found is in - is this possibe?