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.
[[-48, -71, -79, -104, 84, -157, 87], [-28, -37], [37, -129, -61, 98, 71]]