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.
[[-54, -163, 94, -158, -177, -31], [-2, -139, 96], [-186, 1, 36], [-15, -2, 90, -35, 89], [57, 39, -68, 60, 25], [-127, -157, -78, -29], [84, -77, -22]]