Finding the Fourth Proportional to 6,308.99, 8,706.43 and 3,791.15

Step by Step Solution

1. Step 1: Write the proportion equation
   6,308.99 : 8,706.43 = 3,791.15 : x
2. Step 2: Convert to fraction form
   6,308.99/8,706.43 = 3,791.15/x
3. Step 3: Cross multiply
   6,308.99x = 8,706.43 × 3,791.15
4. Step 4: Simplify right side
   6,308.99x = 33,007,319.61
5. Step 5: Solve for x
   x = 33,007,319.61/6,308.99
6. Step 6: Final answer
   x = 5,231.79