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.
[[-197, 83, -15], [-57, -129, 10, -152], [-53, 66, -36], [56, 88, -7]]