In this task, you are given a list. This list contains many lists of integers. The list is several items written within a []. Your task is to find the maximum number among the members of each inner list. The output should be a list comprised of the maximums with the same order as the internal lists.
[[-129, 27, -55, -100], [-145, -27, -158, -159], [63, -73, 3, 47], [-130, -118, 75, 85, -139, -157, 30], [-183, -3], [-9, -28, -100, 45, -1, -40]]