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.
[[-50, -138, -191, 63, -150, -4, 92], [-173, -136, -169], [-138, 25]]