Finding the Fourth Proportional to 6,457.50, 8,911.89 and 3,663.54

Step by Step Solution

1. Step 1: Write the proportion equation
   6,457.50 : 8,911.89 = 3,663.54 : x
2. Step 2: Convert to fraction form
   6,457.50/8,911.89 = 3,663.54/x
3. Step 3: Cross multiply
   6,457.50x = 8,911.89 × 3,663.54
4. Step 4: Simplify right side
   6,457.50x = 32,649,065.49
5. Step 5: Solve for x
   x = 32,649,065.49/6,457.50
6. Step 6: Final answer
   x = 5,055.99