Finding the Fourth Proportional to 22,754.01, 31,399.50 and 12,683.55

Step by Step Solution

1. Step 1: Write the proportion equation
   22,754.01 : 31,399.50 = 12,683.55 : x
2. Step 2: Convert to fraction form
   22,754.01/31,399.50 = 12,683.55/x
3. Step 3: Cross multiply
   22,754.01x = 31,399.50 × 12,683.55
4. Step 4: Simplify right side
   22,754.01x = 398,257,128.23
5. Step 5: Solve for x
   x = 398,257,128.23/22,754.01
6. Step 6: Final answer
   x = 17,502.72