Finding the Fourth Proportional to 7,086.74, 9,783.27 and 5,489.82

Step by Step Solution

1. Step 1: Write the proportion equation
   7,086.74 : 9,783.27 = 5,489.82 : x
2. Step 2: Convert to fraction form
   7,086.74/9,783.27 = 5,489.82/x
3. Step 3: Cross multiply
   7,086.74x = 9,783.27 × 5,489.82
4. Step 4: Simplify right side
   7,086.74x = 53,708,391.31
5. Step 5: Solve for x
   x = 53,708,391.31/7,086.74
6. Step 6: Final answer
   x = 7,578.72