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.
[[-77, -75], [-151, 70, -87], [8, -70, -6, 67, -124], [-49, -46, 15, 82, -45]]