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.
[[-103, -83, 41, -18, -68, 91], [-128, -66, -54, -82, 58], [94, -58]]