Finding the Fourth Proportional to 9,320.72, 12,876.72 and 6,958.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,320.72 : 12,876.72 = 6,958.76 : x
2. Step 2: Convert to fraction form
   9,320.72/12,876.72 = 6,958.76/x
3. Step 3: Cross multiply
   9,320.72x = 12,876.72 × 6,958.76
4. Step 4: Simplify right side
   9,320.72x = 89,606,004.07
5. Step 5: Solve for x
   x = 89,606,004.07/9,320.72
6. Step 6: Final answer
   x = 9,613.64