Finding the Fourth Proportional to 6,499.85, 8,969.91 and 3,847.89

Step by Step Solution

1. Step 1: Write the proportion equation
   6,499.85 : 8,969.91 = 3,847.89 : x
2. Step 2: Convert to fraction form
   6,499.85/8,969.91 = 3,847.89/x
3. Step 3: Cross multiply
   6,499.85x = 8,969.91 × 3,847.89
4. Step 4: Simplify right side
   6,499.85x = 34,515,226.99
5. Step 5: Solve for x
   x = 34,515,226.99/6,499.85
6. Step 6: Final answer
   x = 5,310.16