Finding the Fourth Proportional to 9,306.75, 12,843.32 and 5,115.27

Step by Step Solution

1. Step 1: Write the proportion equation
   9,306.75 : 12,843.32 = 5,115.27 : x
2. Step 2: Convert to fraction form
   9,306.75/12,843.32 = 5,115.27/x
3. Step 3: Cross multiply
   9,306.75x = 12,843.32 × 5,115.27
4. Step 4: Simplify right side
   9,306.75x = 65,697,049.50
5. Step 5: Solve for x
   x = 65,697,049.50/9,306.75
6. Step 6: Final answer
   x = 7,059.08