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.
[[31, 81], [31, 96, -77, 52, -148, 32], [-152, -114, -17], [-192, 59, 54], [-134, -37, -114, -143], [97, -18, 77, -63]]