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.
[[-147, -35, 60], [63, 15, 90], [1, -36, -5, -173, -166], [-187, -182, -12], [-45, -81]]