Paychex Inc. reported fiscal fourth-quarter adjusted earnings of $1.19 a share on Wednesday, matching analyst expectations. Revenue rose about 10% from a year earlier to $1.43 billion but came in slightly below consensus by roughly $3 million. The human-resources and payroll services company said its adjusted operating margin improved to 40.4%, an increase of around 20 basis points from a year ago, helped by contributions from the recent Paycor acquisition and continued investment in technology. For the full fiscal year ended May 31, revenue grew 6% to $5.6 billion. Paychex also initiated guidance for the new fiscal year, though it did not disclose detailed targets in Wednesday’s release. Shares fell about 3% in pre-market trading following the results.