Finding the Fourth Proportional to 6,791.24, 10,140.87 and 5,388.83

Step by Step Solution

1. Step 1: Write the proportion equation
   6,791.24 : 10,140.87 = 5,388.83 : x
2. Step 2: Convert to fraction form
   6,791.24/10,140.87 = 5,388.83/x
3. Step 3: Cross multiply
   6,791.24x = 10,140.87 × 5,388.83
4. Step 4: Simplify right side
   6,791.24x = 54,647,373.78
5. Step 5: Solve for x
   x = 54,647,373.78/6,791.24
6. Step 6: Final answer
   x = 8,046.75