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.
[[-172, -55], [-97, -55, -41], [13, -159], [-76, 42, 37, -98, -7, -63, 34]]