Finding the Fourth Proportional to 22,609.73, 31,201.50 and 12,538.29

Step by Step Solution

1. Step 1: Write the proportion equation
   22,609.73 : 31,201.50 = 12,538.29 : x
2. Step 2: Convert to fraction form
   22,609.73/31,201.50 = 12,538.29/x
3. Step 3: Cross multiply
   22,609.73x = 31,201.50 × 12,538.29
4. Step 4: Simplify right side
   22,609.73x = 391,213,619.46
5. Step 5: Solve for x
   x = 391,213,619.46/22,609.73
6. Step 6: Final answer
   x = 17,302.89