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.
[[86, -51, -86], [-142, -15, 23, 8, -51, 35], [-107, -158], [16, 61, 44, -38, -51]]