Finding the Fourth Proportional to 5,861.88, 8,089.34 and 3,209.27

Step by Step Solution

1. Step 1: Write the proportion equation
   5,861.88 : 8,089.34 = 3,209.27 : x
2. Step 2: Convert to fraction form
   5,861.88/8,089.34 = 3,209.27/x
3. Step 3: Cross multiply
   5,861.88x = 8,089.34 × 3,209.27
4. Step 4: Simplify right side
   5,861.88x = 25,960,819.69
5. Step 5: Solve for x
   x = 25,960,819.69/5,861.88
6. Step 6: Final answer
   x = 4,428.75