Finding the Fourth Proportional to 22,681.52, 31,298.72 and 12,609.35

Step by Step Solution

1. Step 1: Write the proportion equation
   22,681.52 : 31,298.72 = 12,609.35 : x
2. Step 2: Convert to fraction form
   22,681.52/31,298.72 = 12,609.35/x
3. Step 3: Cross multiply
   22,681.52x = 31,298.72 × 12,609.35
4. Step 4: Simplify right side
   22,681.52x = 394,656,295.49
5. Step 5: Solve for x
   x = 394,656,295.49/22,681.52
6. Step 6: Final answer
   x = 17,399.91