Finding the Fourth Proportional to 6,457.93, 8,911.72 and 3,663.43

Step by Step Solution

1. Step 1: Write the proportion equation
   6,457.93 : 8,911.72 = 3,663.43 : x
2. Step 2: Convert to fraction form
   6,457.93/8,911.72 = 3,663.43/x
3. Step 3: Cross multiply
   6,457.93x = 8,911.72 × 3,663.43
4. Step 4: Simplify right side
   6,457.93x = 32,647,444.70
5. Step 5: Solve for x
   x = 32,647,444.70/6,457.93
6. Step 6: Final answer
   x = 5,055.41