Cisco Systems Inc. provided positive numbers in its fiscal fourth-quarter results Wednesday, and there’s a story behind those numbers. The networking giant posted a modest revenue beat of $13.64 billion, $100 million more than consensus estimates. Gross margin, boosted by the acquisition of Splunk Inc., came in at a whopping 67.5%, the highest number for Cisco in 20 years. Product order growth rose 14% year over year, 6% excluding Splunk.