Finding the Fourth Proportional to 22,800.72, 31,437 and 16,510.80

Step by Step Solution

1. Step 1: Write the proportion equation
   22,800.72 : 31,437 = 16,510.80 : x
2. Step 2: Convert to fraction form
   22,800.72/31,437 = 16,510.80/x
3. Step 3: Cross multiply
   22,800.72x = 31,437 × 16,510.80
4. Step 4: Simplify right side
   22,800.72x = 519,050,019.60
5. Step 5: Solve for x
   x = 519,050,019.60/22,800.72
6. Step 6: Final answer
   x = 22,764.63