Finding the Fourth Proportional to 6,609.83, 9,912.17 and 3,320.62

Step by Step Solution

1. Step 1: Write the proportion equation
   6,609.83 : 9,912.17 = 3,320.62 : x
2. Step 2: Convert to fraction form
   6,609.83/9,912.17 = 3,320.62/x
3. Step 3: Cross multiply
   6,609.83x = 9,912.17 × 3,320.62
4. Step 4: Simplify right side
   6,609.83x = 32,914,533.47
5. Step 5: Solve for x
   x = 32,914,533.47/6,609.83
6. Step 6: Final answer
   x = 4,979.64