Finding the Fourth Proportional to 9,322.72, 12,879.48 and 6,960.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,322.72 : 12,879.48 = 6,960.76 : x
2. Step 2: Convert to fraction form
   9,322.72/12,879.48 = 6,960.76/x
3. Step 3: Cross multiply
   9,322.72x = 12,879.48 × 6,960.76
4. Step 4: Simplify right side
   9,322.72x = 89,650,969.20
5. Step 5: Solve for x
   x = 89,650,969.20/9,322.72
6. Step 6: Final answer
   x = 9,616.40