Finding the Fourth Proportional to 22,675.92, 31,292.90 and 12,605.31

Step by Step Solution

1. Step 1: Write the proportion equation
   22,675.92 : 31,292.90 = 12,605.31 : x
2. Step 2: Convert to fraction form
   22,675.92/31,292.90 = 12,605.31/x
3. Step 3: Cross multiply
   22,675.92x = 31,292.90 × 12,605.31
4. Step 4: Simplify right side
   22,675.92x = 394,456,642.27
5. Step 5: Solve for x
   x = 394,456,642.27/22,675.92
6. Step 6: Final answer
   x = 17,395.40