Finding the Fourth Proportional to 9,399.23, 12,965.51 and 5,856.29

Step by Step Solution

1. Step 1: Write the proportion equation
   9,399.23 : 12,965.51 = 5,856.29 : x
2. Step 2: Convert to fraction form
   9,399.23/12,965.51 = 5,856.29/x
3. Step 3: Cross multiply
   9,399.23x = 12,965.51 × 5,856.29
4. Step 4: Simplify right side
   9,399.23x = 75,929,692.45
5. Step 5: Solve for x
   x = 75,929,692.45/9,399.23
6. Step 6: Final answer
   x = 8,078.29