Monsanto Co., the world’s largest seed company, posted a fiscal fourth-quarter loss that exceeded analysts’ estimates, and said 2011 earnings will rise as much as 17 percent, Bloomberg reported. The net loss narrowed to $143 million, or 26 cents a share, in the three months ended Aug. 31, from $233 million, or 43 cents per share, a year earlier, St. Louis-based Monsanto said today in a statement. Excluding restructuring costs, the loss was 9 cents a share, trailing the 6-cent average of 14 analyst estimates in a Bloomberg survey. Sales climbed 3.9 percent to $1.95 billion.