Finding the Fourth Proportional to 22,573.50, 31,151.46 and 12,637.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,573.50 : 31,151.46 = 12,637.50 : x
2. Step 2: Convert to fraction form
   22,573.50/31,151.46 = 12,637.50/x
3. Step 3: Cross multiply
   22,573.50x = 31,151.46 × 12,637.50
4. Step 4: Simplify right side
   22,573.50x = 393,676,575.75
5. Step 5: Solve for x
   x = 393,676,575.75/22,573.50
6. Step 6: Final answer
   x = 17,439.77