Finding the Fourth Proportional to 9,716.85, 13,411.89 and 5,739.39

Step by Step Solution

1. Step 1: Write the proportion equation
   9,716.85 : 13,411.89 = 5,739.39 : x
2. Step 2: Convert to fraction form
   9,716.85/13,411.89 = 5,739.39/x
3. Step 3: Cross multiply
   9,716.85x = 13,411.89 × 5,739.39
4. Step 4: Simplify right side
   9,716.85x = 76,976,067.35
5. Step 5: Solve for x
   x = 76,976,067.35/9,716.85
6. Step 6: Final answer
   x = 7,921.92