Finding the Fourth Proportional to 6,371.78, 8,793.42 and 3,719.02

Step by Step Solution

1. Step 1: Write the proportion equation
   6,371.78 : 8,793.42 = 3,719.02 : x
2. Step 2: Convert to fraction form
   6,371.78/8,793.42 = 3,719.02/x
3. Step 3: Cross multiply
   6,371.78x = 8,793.42 × 3,719.02
4. Step 4: Simplify right side
   6,371.78x = 32,702,904.85
5. Step 5: Solve for x
   x = 32,702,904.85/6,371.78
6. Step 6: Final answer
   x = 5,132.46