Finding the Fourth Proportional to 22,631.82, 31,231.87 and 12,560.39

Step by Step Solution

1. Step 1: Write the proportion equation
   22,631.82 : 31,231.87 = 12,560.39 : x
2. Step 2: Convert to fraction form
   22,631.82/31,231.87 = 12,560.39/x
3. Step 3: Cross multiply
   22,631.82x = 31,231.87 × 12,560.39
4. Step 4: Simplify right side
   22,631.82x = 392,284,311.47
5. Step 5: Solve for x
   x = 392,284,311.47/22,631.82
6. Step 6: Final answer
   x = 17,333.31