Finding the Fourth Proportional to 9,238.10, 12,747.11 and 5,259.29

Step by Step Solution

1. Step 1: Write the proportion equation
   9,238.10 : 12,747.11 = 5,259.29 : x
2. Step 2: Convert to fraction form
   9,238.10/12,747.11 = 5,259.29/x
3. Step 3: Cross multiply
   9,238.10x = 12,747.11 × 5,259.29
4. Step 4: Simplify right side
   9,238.10x = 67,040,658.12
5. Step 5: Solve for x
   x = 67,040,658.12/9,238.10
6. Step 6: Final answer
   x = 7,256.98