Finding the Fourth Proportional to 22,708.50, 31,337.73 and 12,772.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,708.50 : 31,337.73 = 12,772.50 : x
2. Step 2: Convert to fraction form
   22,708.50/31,337.73 = 12,772.50/x
3. Step 3: Cross multiply
   22,708.50x = 31,337.73 × 12,772.50
4. Step 4: Simplify right side
   22,708.50x = 400,261,156.43
5. Step 5: Solve for x
   x = 400,261,156.43/22,708.50
6. Step 6: Final answer
   x = 17,626.05