Finding the Fourth Proportional to 6,458.96, 8,913.64 and 3,664.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,458.96 : 8,913.64 = 3,664.72 : x
2. Step 2: Convert to fraction form
   6,458.96/8,913.64 = 3,664.72/x
3. Step 3: Cross multiply
   6,458.96x = 8,913.64 × 3,664.72
4. Step 4: Simplify right side
   6,458.96x = 32,665,994.78
5. Step 5: Solve for x
   x = 32,665,994.78/6,458.96
6. Step 6: Final answer
   x = 5,057.47