Finding the Fourth Proportional to 5,858.96, 8,087.72 and 3,969.68

Step by Step Solution

1. Step 1: Write the proportion equation
   5,858.96 : 8,087.72 = 3,969.68 : x
2. Step 2: Convert to fraction form
   5,858.96/8,087.72 = 3,969.68/x
3. Step 3: Cross multiply
   5,858.96x = 8,087.72 × 3,969.68
4. Step 4: Simplify right side
   5,858.96x = 32,105,660.33
5. Step 5: Solve for x
   x = 32,105,660.33/5,858.96
6. Step 6: Final answer
   x = 5,479.75