Finding the Fourth Proportional to 8,233.62, 12,339.48 and 7,132.86

Step by Step Solution

1. Step 1: Write the proportion equation
   8,233.62 : 12,339.48 = 7,132.86 : x
2. Step 2: Convert to fraction form
   8,233.62/12,339.48 = 7,132.86/x
3. Step 3: Cross multiply
   8,233.62x = 12,339.48 × 7,132.86
4. Step 4: Simplify right side
   8,233.62x = 88,015,783.31
5. Step 5: Solve for x
   x = 88,015,783.31/8,233.62
6. Step 6: Final answer
   x = 10,689.80