Finding the Fourth Proportional to 8,308.18, 12,461.73 and 4,414.78

Step by Step Solution

1. Step 1: Write the proportion equation
   8,308.18 : 12,461.73 = 4,414.78 : x
2. Step 2: Convert to fraction form
   8,308.18/12,461.73 = 4,414.78/x
3. Step 3: Cross multiply
   8,308.18x = 12,461.73 × 4,414.78
4. Step 4: Simplify right side
   8,308.18x = 55,015,796.37
5. Step 5: Solve for x
   x = 55,015,796.37/8,308.18
6. Step 6: Final answer
   x = 6,621.88