Finding the Fourth Proportional to 6,499.35, 8,969.09 and 3,515.15

Step by Step Solution

1. Step 1: Write the proportion equation
   6,499.35 : 8,969.09 = 3,515.15 : x
2. Step 2: Convert to fraction form
   6,499.35/8,969.09 = 3,515.15/x
3. Step 3: Cross multiply
   6,499.35x = 8,969.09 × 3,515.15
4. Step 4: Simplify right side
   6,499.35x = 31,527,634.29
5. Step 5: Solve for x
   x = 31,527,634.29/6,499.35
6. Step 6: Final answer
   x = 4,850.89