Finding the Fourth Proportional to 22,644.43, 31,250.81 and 13,692.31

Step by Step Solution

1. Step 1: Write the proportion equation
   22,644.43 : 31,250.81 = 13,692.31 : x
2. Step 2: Convert to fraction form
   22,644.43/31,250.81 = 13,692.31/x
3. Step 3: Cross multiply
   22,644.43x = 31,250.81 × 13,692.31
4. Step 4: Simplify right side
   22,644.43x = 427,895,734.37
5. Step 5: Solve for x
   x = 427,895,734.37/22,644.43
6. Step 6: Final answer
   x = 18,896.29