Finding the Fourth Proportional to 22,644.27, 31,249.31 and 13,697.76

Step by Step Solution

1. Step 1: Write the proportion equation
   22,644.27 : 31,249.31 = 13,697.76 : x
2. Step 2: Convert to fraction form
   22,644.27/31,249.31 = 13,697.76/x
3. Step 3: Cross multiply
   22,644.27x = 31,249.31 × 13,697.76
4. Step 4: Simplify right side
   22,644.27x = 428,045,480.06
5. Step 5: Solve for x
   x = 428,045,480.06/22,644.27
6. Step 6: Final answer
   x = 18,903.04