Finding the Fourth Proportional to 6,457.31, 8,911.10 and 3,662.81

Step by Step Solution

1. Step 1: Write the proportion equation
   6,457.31 : 8,911.10 = 3,662.81 : x
2. Step 2: Convert to fraction form
   6,457.31/8,911.10 = 3,662.81/x
3. Step 3: Cross multiply
   6,457.31x = 8,911.10 × 3,662.81
4. Step 4: Simplify right side
   6,457.31x = 32,639,670.15
5. Step 5: Solve for x
   x = 32,639,670.15/6,457.31
6. Step 6: Final answer
   x = 5,054.68