Finding the Fourth Proportional to 6,341.20, 9,513.16 and 3,221.62

Step by Step Solution

1. Step 1: Write the proportion equation
   6,341.20 : 9,513.16 = 3,221.62 : x
2. Step 2: Convert to fraction form
   6,341.20/9,513.16 = 3,221.62/x
3. Step 3: Cross multiply
   6,341.20x = 9,513.16 × 3,221.62
4. Step 4: Simplify right side
   6,341.20x = 30,647,786.52
5. Step 5: Solve for x
   x = 30,647,786.52/6,341.20
6. Step 6: Final answer
   x = 4,833.12