Finding the Fourth Proportional to 22,472.63, 31,010.41 and 12,909.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,472.63 : 31,010.41 = 12,909.50 : x
2. Step 2: Convert to fraction form
   22,472.63/31,010.41 = 12,909.50/x
3. Step 3: Cross multiply
   22,472.63x = 31,010.41 × 12,909.50
4. Step 4: Simplify right side
   22,472.63x = 400,328,887.90
5. Step 5: Solve for x
   x = 400,328,887.90/22,472.63
6. Step 6: Final answer
   x = 17,814.06