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.
[[71, 3, -139, -64, -194, -101], [66, 35, -31, -145, -187], [39, -38, 85, 36], [-18, -134, -174, 78, 75, -128]]