Finding the Fourth Proportional to 22,857.16, 31,553.22 and 13,426.48

Step by Step Solution

1. Step 1: Write the proportion equation
   22,857.16 : 31,553.22 = 13,426.48 : x
2. Step 2: Convert to fraction form
   22,857.16/31,553.22 = 13,426.48/x
3. Step 3: Cross multiply
   22,857.16x = 31,553.22 × 13,426.48
4. Step 4: Simplify right side
   22,857.16x = 423,648,677.27
5. Step 5: Solve for x
   x = 423,648,677.27/22,857.16
6. Step 6: Final answer
   x = 18,534.62