Finding the Fourth Proportional to 9,306.50, 12,843.24 and 5,115.02

Step by Step Solution

1. Step 1: Write the proportion equation
   9,306.50 : 12,843.24 = 5,115.02 : x
2. Step 2: Convert to fraction form
   9,306.50/12,843.24 = 5,115.02/x
3. Step 3: Cross multiply
   9,306.50x = 12,843.24 × 5,115.02
4. Step 4: Simplify right side
   9,306.50x = 65,693,429.46
5. Step 5: Solve for x
   x = 65,693,429.46/9,306.50
6. Step 6: Final answer
   x = 7,058.88