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.
[[-9, -3, -185, -144, -63, -31], [-7, -100], [-76, -159, -74, -110, -106]]