Finding the Fourth Proportional to 22,700.59, 31,327.56 and 12,492.02

Step by Step Solution

1. Step 1: Write the proportion equation
   22,700.59 : 31,327.56 = 12,492.02 : x
2. Step 2: Convert to fraction form
   22,700.59/31,327.56 = 12,492.02/x
3. Step 3: Cross multiply
   22,700.59x = 31,327.56 × 12,492.02
4. Step 4: Simplify right side
   22,700.59x = 391,344,584.39
5. Step 5: Solve for x
   x = 391,344,584.39/22,700.59
6. Step 6: Final answer
   x = 17,239.40