Finding the Fourth Proportional to 9,488.09, 13,092.89 and 5,238.47

Step by Step Solution

1. Step 1: Write the proportion equation
   9,488.09 : 13,092.89 = 5,238.47 : x
2. Step 2: Convert to fraction form
   9,488.09/13,092.89 = 5,238.47/x
3. Step 3: Cross multiply
   9,488.09x = 13,092.89 × 5,238.47
4. Step 4: Simplify right side
   9,488.09x = 68,586,711.48
5. Step 5: Solve for x
   x = 68,586,711.48/9,488.09
6. Step 6: Final answer
   x = 7,228.72