Finding the Fourth Proportional to 6,480.59, 9,720.81 and 4,395.42

Step by Step Solution

1. Step 1: Write the proportion equation
   6,480.59 : 9,720.81 = 4,395.42 : x
2. Step 2: Convert to fraction form
   6,480.59/9,720.81 = 4,395.42/x
3. Step 3: Cross multiply
   6,480.59x = 9,720.81 × 4,395.42
4. Step 4: Simplify right side
   6,480.59x = 42,727,042.69
5. Step 5: Solve for x
   x = 42,727,042.69/6,480.59
6. Step 6: Final answer
   x = 6,593.08