Finding the Fourth Proportional to 9,227.85, 13,856.37 and 7,288.71

Step by Step Solution

1. Step 1: Write the proportion equation
   9,227.85 : 13,856.37 = 7,288.71 : x
2. Step 2: Convert to fraction form
   9,227.85/13,856.37 = 7,288.71/x
3. Step 3: Cross multiply
   9,227.85x = 13,856.37 × 7,288.71
4. Step 4: Simplify right side
   9,227.85x = 100,995,062.58
5. Step 5: Solve for x
   x = 100,995,062.58/9,227.85
6. Step 6: Final answer
   x = 10,944.59