Finding the Fourth Proportional to 6,411.60, 8,847.99 and 3,617.10

Step by Step Solution

1. Step 1: Write the proportion equation
   6,411.60 : 8,847.99 = 3,617.10 : x
2. Step 2: Convert to fraction form
   6,411.60/8,847.99 = 3,617.10/x
3. Step 3: Cross multiply
   6,411.60x = 8,847.99 × 3,617.10
4. Step 4: Simplify right side
   6,411.60x = 32,004,064.63
5. Step 5: Solve for x
   x = 32,004,064.63/6,411.60
6. Step 6: Final answer
   x = 4,991.59