Finding the Fourth Proportional to 22,610.62, 31,200.96 and 12,538.09

Step by Step Solution

1. Step 1: Write the proportion equation
   22,610.62 : 31,200.96 = 12,538.09 : x
2. Step 2: Convert to fraction form
   22,610.62/31,200.96 = 12,538.09/x
3. Step 3: Cross multiply
   22,610.62x = 31,200.96 × 12,538.09
4. Step 4: Simplify right side
   22,610.62x = 391,200,444.57
5. Step 5: Solve for x
   x = 391,200,444.57/22,610.62
6. Step 6: Final answer
   x = 17,301.62