Finding the Fourth Proportional to 6,620.40, 9,933.31 and 3,499.58

Step by Step Solution

1. Step 1: Write the proportion equation
   6,620.40 : 9,933.31 = 3,499.58 : x
2. Step 2: Convert to fraction form
   6,620.40/9,933.31 = 3,499.58/x
3. Step 3: Cross multiply
   6,620.40x = 9,933.31 × 3,499.58
4. Step 4: Simplify right side
   6,620.40x = 34,762,354.59
5. Step 5: Solve for x
   x = 34,762,354.59/6,620.40
6. Step 6: Final answer
   x = 5,250.79