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.
[[-131, 33, 62, 95, 78], [39, -186], [52, -148, -84], [4, -81], [-61, -162, -164], [-47, 40, -158, 38, 52, 44, -139]]