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, -28, 56, -187, -76, -12], [-150, 8, -36], [-31, -127], [28, 83, -22], [-145, 77, -200]]