Finding the Fourth Proportional to 9,339.62, 12,901.25 and 8,675.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,339.62 : 12,901.25 = 8,675.31 : x
2. Step 2: Convert to fraction form
   9,339.62/12,901.25 = 8,675.31/x
3. Step 3: Cross multiply
   9,339.62x = 12,901.25 × 8,675.31
4. Step 4: Simplify right side
   9,339.62x = 111,922,299.76
5. Step 5: Solve for x
   x = 111,922,299.76/9,339.62
6. Step 6: Final answer
   x = 11,983.61