Finding the Fourth Proportional to 6,308.78, 8,705.19 and 3,514.22

Step by Step Solution

1. Step 1: Write the proportion equation
   6,308.78 : 8,705.19 = 3,514.22 : x
2. Step 2: Convert to fraction form
   6,308.78/8,705.19 = 3,514.22/x
3. Step 3: Cross multiply
   6,308.78x = 8,705.19 × 3,514.22
4. Step 4: Simplify right side
   6,308.78x = 30,591,952.80
5. Step 5: Solve for x
   x = 30,591,952.80/6,308.78
6. Step 6: Final answer
   x = 4,849.11