Finding the Fourth Proportional to 22,521.30, 31,081.41 and 12,452.10

Step by Step Solution

1. Step 1: Write the proportion equation
   22,521.30 : 31,081.41 = 12,452.10 : x
2. Step 2: Convert to fraction form
   22,521.30/31,081.41 = 12,452.10/x
3. Step 3: Cross multiply
   22,521.30x = 31,081.41 × 12,452.10
4. Step 4: Simplify right side
   22,521.30x = 387,028,825.46
5. Step 5: Solve for x
   x = 387,028,825.46/22,521.30
6. Step 6: Final answer
   x = 17,185.01