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.
[[-177, -7, 5, -198], [-111, 73], [-147, 40, 35, -34, 19, 30], [42, -121, -69, -186, -17]]