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.
[[-137, 50, -167, 72], [-158, -173, -157, 92, -61], [-27, -109, -44, 42, -121], [45, 75], [35, -162, -17]]