Finding the Fourth Proportional to 9,112.59, 12,578.52 and 5,336.97

Step by Step Solution

1. Step 1: Write the proportion equation
   9,112.59 : 12,578.52 = 5,336.97 : x
2. Step 2: Convert to fraction form
   9,112.59/12,578.52 = 5,336.97/x
3. Step 3: Cross multiply
   9,112.59x = 12,578.52 × 5,336.97
4. Step 4: Simplify right side
   9,112.59x = 67,131,183.88
5. Step 5: Solve for x
   x = 67,131,183.88/9,112.59
6. Step 6: Final answer
   x = 7,366.86