Finding the Fourth Proportional to 6,315.80, 8,716.31 and 3,483.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,315.80 : 8,716.31 = 3,483.72 : x
2. Step 2: Convert to fraction form
   6,315.80/8,716.31 = 3,483.72/x
3. Step 3: Cross multiply
   6,315.80x = 8,716.31 × 3,483.72
4. Step 4: Simplify right side
   6,315.80x = 30,365,166.05
5. Step 5: Solve for x
   x = 30,365,166.05/6,315.80
6. Step 6: Final answer
   x = 4,807.81