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.
[[27, -1, -138], [-36, -195], [-182, -64], [68, -125, -30, -121], [-163, -75], [-174, -22, -109, -42, -113, 28], [-15, -147, 86, 78]]