Finding the Fourth Proportional to 6,499.90, 8,969.82 and 3,847.28

Step by Step Solution

1. Step 1: Write the proportion equation
   6,499.90 : 8,969.82 = 3,847.28 : x
2. Step 2: Convert to fraction form
   6,499.90/8,969.82 = 3,847.28/x
3. Step 3: Cross multiply
   6,499.90x = 8,969.82 × 3,847.28
4. Step 4: Simplify right side
   6,499.90x = 34,509,409.09
5. Step 5: Solve for x
   x = 34,509,409.09/6,499.90
6. Step 6: Final answer
   x = 5,309.22