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.
[[78, -98, 29, -117], [-174, 22, -157, -12], [-137, -12, -194, -83, 48, -161], [61, -198], [100, -153, 75, -18]]