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.
[[37, 33, -84, -81, -186], [60, -42, -172, -142, -54, -86, -69], [-73, -23, -39], [56, 58], [-163, -13, 45, -12, -132]]