Finding the Fourth Proportional to 22,609.94, 31,200.20 and 12,538.02

Step by Step Solution

1. Step 1: Write the proportion equation
   22,609.94 : 31,200.20 = 12,538.02 : x
2. Step 2: Convert to fraction form
   22,609.94/31,200.20 = 12,538.02/x
3. Step 3: Cross multiply
   22,609.94x = 31,200.20 × 12,538.02
4. Step 4: Simplify right side
   22,609.94x = 391,188,731.60
5. Step 5: Solve for x
   x = 391,188,731.60/22,609.94
6. Step 6: Final answer
   x = 17,301.63