Finding the Fourth Proportional to 5,785.40, 8,682.42 and 3,932.12

Step by Step Solution

1. Step 1: Write the proportion equation
   5,785.40 : 8,682.42 = 3,932.12 : x
2. Step 2: Convert to fraction form
   5,785.40/8,682.42 = 3,932.12/x
3. Step 3: Cross multiply
   5,785.40x = 8,682.42 × 3,932.12
4. Step 4: Simplify right side
   5,785.40x = 34,140,317.33
5. Step 5: Solve for x
   x = 34,140,317.33/5,785.40
6. Step 6: Final answer
   x = 5,901.12