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.
[[-46, -197, -7, -8], [-9, -71, -92], [92, 10, 50, -121, -53], [-60, -56, -3, -46]]