Finding the Fourth Proportional to 5,870.72, 8,103.36 and 4,007.68

Step by Step Solution

1. Step 1: Write the proportion equation
   5,870.72 : 8,103.36 = 4,007.68 : x
2. Step 2: Convert to fraction form
   5,870.72/8,103.36 = 4,007.68/x
3. Step 3: Cross multiply
   5,870.72x = 8,103.36 × 4,007.68
4. Step 4: Simplify right side
   5,870.72x = 32,475,673.80
5. Step 5: Solve for x
   x = 32,475,673.80/5,870.72
6. Step 6: Final answer
   x = 5,531.80