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.
[[-2, -140], [98, -150, 53, -148], [-109, -77, -131, -45, -156, -140, 14], [7, -86, 85, -118, -86, -11, 12], [-172, -11]]