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.
[[57, 1, -116, -74, 72, -86], [-19, -44, -181, 89, -174, 39, 96], [-170, -82, -59, 83]]