Finding the Fourth Proportional to 22,662.49, 31,273.35 and 12,591.56

Step by Step Solution

1. Step 1: Write the proportion equation
   22,662.49 : 31,273.35 = 12,591.56 : x
2. Step 2: Convert to fraction form
   22,662.49/31,273.35 = 12,591.56/x
3. Step 3: Cross multiply
   22,662.49x = 31,273.35 × 12,591.56
4. Step 4: Simplify right side
   22,662.49x = 393,780,262.93
5. Step 5: Solve for x
   x = 393,780,262.93/22,662.49
6. Step 6: Final answer
   x = 17,375.86