Walmart has reported fiscal fourth quarter earnings of $US4.97 billion ($A6.36 billion). On a per share basis, the Bentonville, Arkansas-based company said it had net income of $US1.53. Earnings, adjusted for non recurring costs, were $US1.61 per share. The results beat Wall Street expectations. The average estimate of analysts surveyed by Zacks Investment Research was for earnings of $US1.54 per share. The world’s largest retailer posted revenue of $US131.57 billion in the period, missing