Finding the Fourth Proportional to 22,500.57, 31,056.78 and 12,941.49

Step by Step Solution

1. Step 1: Write the proportion equation
   22,500.57 : 31,056.78 = 12,941.49 : x
2. Step 2: Convert to fraction form
   22,500.57/31,056.78 = 12,941.49/x
3. Step 3: Cross multiply
   22,500.57x = 31,056.78 × 12,941.49
4. Step 4: Simplify right side
   22,500.57x = 401,921,007.80
5. Step 5: Solve for x
   x = 401,921,007.80/22,500.57
6. Step 6: Final answer
   x = 17,862.70