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.
[[-153, 13, -198, -139], [-137, -70, 60, -142, 59, -67, 48], [-78, -35, -97, 48, -151], [-23, -176, -185, -190, 6]]