Finding the Fourth Proportional to 9,321.80, 12,860.82 and 5,965.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,321.80 : 12,860.82 = 5,965.16 : x
2. Step 2: Convert to fraction form
   9,321.80/12,860.82 = 5,965.16/x
3. Step 3: Cross multiply
   9,321.80x = 12,860.82 × 5,965.16
4. Step 4: Simplify right side
   9,321.80x = 76,716,849.03
5. Step 5: Solve for x
   x = 76,716,849.03/9,321.80
6. Step 6: Final answer
   x = 8,229.83