Finding the Fourth Proportional to 6,308.28, 8,705.34 and 3,513.78

Step by Step Solution

1. Step 1: Write the proportion equation
   6,308.28 : 8,705.34 = 3,513.78 : x
2. Step 2: Convert to fraction form
   6,308.28/8,705.34 = 3,513.78/x
3. Step 3: Cross multiply
   6,308.28x = 8,705.34 × 3,513.78
4. Step 4: Simplify right side
   6,308.28x = 30,588,649.59
5. Step 5: Solve for x
   x = 30,588,649.59/6,308.28
6. Step 6: Final answer
   x = 4,848.97