Finding the Fourth Proportional to 7,979.72, 10,965.76 and 7,613.84

Step by Step Solution

1. Step 1: Write the proportion equation
   7,979.72 : 10,965.76 = 7,613.84 : x
2. Step 2: Convert to fraction form
   7,979.72/10,965.76 = 7,613.84/x
3. Step 3: Cross multiply
   7,979.72x = 10,965.76 × 7,613.84
4. Step 4: Simplify right side
   7,979.72x = 83,491,449.22
5. Step 5: Solve for x
   x = 83,491,449.22/7,979.72
6. Step 6: Final answer
   x = 10,462.95