Finding the Fourth Proportional to 8,309.18, 12,463.56 and 3,377.60

Step by Step Solution

1. Step 1: Write the proportion equation
   8,309.18 : 12,463.56 = 3,377.60 : x
2. Step 2: Convert to fraction form
   8,309.18/12,463.56 = 3,377.60/x
3. Step 3: Cross multiply
   8,309.18x = 12,463.56 × 3,377.60
4. Step 4: Simplify right side
   8,309.18x = 42,096,857.94
5. Step 5: Solve for x
   x = 42,096,857.94/8,309.18
6. Step 6: Final answer
   x = 5,066.31