Finding the Fourth Proportional to 9,238.52, 12,747.69 and 5,259.71

Step by Step Solution

1. Step 1: Write the proportion equation
   9,238.52 : 12,747.69 = 5,259.71 : x
2. Step 2: Convert to fraction form
   9,238.52/12,747.69 = 5,259.71/x
3. Step 3: Cross multiply
   9,238.52x = 12,747.69 × 5,259.71
4. Step 4: Simplify right side
   9,238.52x = 67,049,097.94
5. Step 5: Solve for x
   x = 67,049,097.94/9,238.52
6. Step 6: Final answer
   x = 7,257.56