Finding the Fourth Proportional to 5,357.10, 7,392.39 and 3,086.82

Step by Step Solution

1. Step 1: Write the proportion equation
   5,357.10 : 7,392.39 = 3,086.82 : x
2. Step 2: Convert to fraction form
   5,357.10/7,392.39 = 3,086.82/x
3. Step 3: Cross multiply
   5,357.10x = 7,392.39 × 3,086.82
4. Step 4: Simplify right side
   5,357.10x = 22,819,017.74
5. Step 5: Solve for x
   x = 22,819,017.74/5,357.10
6. Step 6: Final answer
   x = 4,259.59