Finding the Fourth Proportional to 22,553.43, 31,123.80 and 12,482.57

Step by Step Solution

1. Step 1: Write the proportion equation
   22,553.43 : 31,123.80 = 12,482.57 : x
2. Step 2: Convert to fraction form
   22,553.43/31,123.80 = 12,482.57/x
3. Step 3: Cross multiply
   22,553.43x = 31,123.80 × 12,482.57
4. Step 4: Simplify right side
   22,553.43x = 388,504,856.55
5. Step 5: Solve for x
   x = 388,504,856.55/22,553.43
6. Step 6: Final answer
   x = 17,225.98