Finding the Fourth Proportional to 22,785.27, 31,443.72 and 12,713.46

Step by Step Solution

1. Step 1: Write the proportion equation
   22,785.27 : 31,443.72 = 12,713.46 : x
2. Step 2: Convert to fraction form
   22,785.27/31,443.72 = 12,713.46/x
3. Step 3: Cross multiply
   22,785.27x = 31,443.72 × 12,713.46
4. Step 4: Simplify right side
   22,785.27x = 399,758,476.47
5. Step 5: Solve for x
   x = 399,758,476.47/22,785.27
6. Step 6: Final answer
   x = 17,544.60