Finding the Fourth Proportional to 22,729.50, 31,366.80 and 12,793.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,729.50 : 31,366.80 = 12,793.50 : x
2. Step 2: Convert to fraction form
   22,729.50/31,366.80 = 12,793.50/x
3. Step 3: Cross multiply
   22,729.50x = 31,366.80 × 12,793.50
4. Step 4: Simplify right side
   22,729.50x = 401,291,155.80
5. Step 5: Solve for x
   x = 401,291,155.80/22,729.50
6. Step 6: Final answer
   x = 17,655.08