Finding the Fourth Proportional to 22,527.64, 31,086.89 and 12,455.48

Step by Step Solution

1. Step 1: Write the proportion equation
   22,527.64 : 31,086.89 = 12,455.48 : x
2. Step 2: Convert to fraction form
   22,527.64/31,086.89 = 12,455.48/x
3. Step 3: Cross multiply
   22,527.64x = 31,086.89 × 12,455.48
4. Step 4: Simplify right side
   22,527.64x = 387,202,169.76
5. Step 5: Solve for x
   x = 387,202,169.76/22,527.64
6. Step 6: Final answer
   x = 17,187.87