Finding the Fourth Proportional to 23,981.98, 35,951.06 and 8,391.10

Step by Step Solution

1. Step 1: Write the proportion equation
   23,981.98 : 35,951.06 = 8,391.10 : x
2. Step 2: Convert to fraction form
   23,981.98/35,951.06 = 8,391.10/x
3. Step 3: Cross multiply
   23,981.98x = 35,951.06 × 8,391.10
4. Step 4: Simplify right side
   23,981.98x = 301,668,897.61
5. Step 5: Solve for x
   x = 301,668,897.61/23,981.98
6. Step 6: Final answer
   x = 12,578.98