Finding the Fourth Proportional to 6,462.18, 8,917.56 and 3,948.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,462.18 : 8,917.56 = 3,948.50 : x
2. Step 2: Convert to fraction form
   6,462.18/8,917.56 = 3,948.50/x
3. Step 3: Cross multiply
   6,462.18x = 8,917.56 × 3,948.50
4. Step 4: Simplify right side
   6,462.18x = 35,211,007.95
5. Step 5: Solve for x
   x = 35,211,007.95/6,462.18
6. Step 6: Final answer
   x = 5,448.78