Ｃ列が変数aと同じ値で、かつＤ列が変数bと同じ値で、かつＥ列が変数ｃと同じ値の各行で
Ｚ列（整数）が最大値の行の行番号を変数iに代入する方法を教えてください

Dim r As Long,i As Long
Dim a As String, b As String, c As String

For r = 5 to lsr
If Cells(r,3) = a And
Cells(r,4) = b And
Cells(r,5) = c Then
Rows(r).???
End If
Next cnt

i = Application.WorksheetFunction.Max(???)