Finding the Fourth Proportional to 22,613.28, 31,205.52 and 12,542.16

Step by Step Solution

1. Step 1: Write the proportion equation
   22,613.28 : 31,205.52 = 12,542.16 : x
2. Step 2: Convert to fraction form
   22,613.28/31,205.52 = 12,542.16/x
3. Step 3: Cross multiply
   22,613.28x = 31,205.52 × 12,542.16
4. Step 4: Simplify right side
   22,613.28x = 391,384,624.72
5. Step 5: Solve for x
   x = 391,384,624.72/22,613.28
6. Step 6: Final answer
   x = 17,307.73