Finding the Fourth Proportional to 22,526.74, 31,085.57 and 12,454.39

Step by Step Solution

1. Step 1: Write the proportion equation
   22,526.74 : 31,085.57 = 12,454.39 : x
2. Step 2: Convert to fraction form
   22,526.74/31,085.57 = 12,454.39/x
3. Step 3: Cross multiply
   22,526.74x = 31,085.57 × 12,454.39
4. Step 4: Simplify right side
   22,526.74x = 387,151,882.15
5. Step 5: Solve for x
   x = 387,151,882.15/22,526.74
6. Step 6: Final answer
   x = 17,186.32