Finding the Fourth Proportional to 22,552.50, 31,123.89 and 12,616.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,552.50 : 31,123.89 = 12,616.50 : x
2. Step 2: Convert to fraction form
   22,552.50/31,123.89 = 12,616.50/x
3. Step 3: Cross multiply
   22,552.50x = 31,123.89 × 12,616.50
4. Step 4: Simplify right side
   22,552.50x = 392,674,558.19
5. Step 5: Solve for x
   x = 392,674,558.19/22,552.50
6. Step 6: Final answer
   x = 17,411.58