Finding the Fourth Proportional to 6,377.31, 9,558.63 and 2,478.42

Step by Step Solution

1. Step 1: Write the proportion equation
   6,377.31 : 9,558.63 = 2,478.42 : x
2. Step 2: Convert to fraction form
   6,377.31/9,558.63 = 2,478.42/x
3. Step 3: Cross multiply
   6,377.31x = 9,558.63 × 2,478.42
4. Step 4: Simplify right side
   6,377.31x = 23,690,299.76
5. Step 5: Solve for x
   x = 23,690,299.76/6,377.31
6. Step 6: Final answer
   x = 3,714.78