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.
[[-45, -84, -82, -12, -158, -144, -50], [-179, 29, -88], [-139, -105], [-111, -160, 75, 34]]