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.
[[-142, 54, -88, 3], [-35, 79, -39], [-17, 98, -10, -89, -135, -7, 78], [-104, -51, 1, 56], [-28, -80, -49]]