Finding the Fourth Proportional to 22,859.47, 31,552.41 and 13,301.20

Step by Step Solution

1. Step 1: Write the proportion equation
   22,859.47 : 31,552.41 = 13,301.20 : x
2. Step 2: Convert to fraction form
   22,859.47/31,552.41 = 13,301.20/x
3. Step 3: Cross multiply
   22,859.47x = 31,552.41 × 13,301.20
4. Step 4: Simplify right side
   22,859.47x = 419,684,915.89
5. Step 5: Solve for x
   x = 419,684,915.89/22,859.47
6. Step 6: Final answer
   x = 18,359.35