Finding the Fourth Proportional to 9,112.38, 12,578.25 and 5,336.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,112.38 : 12,578.25 = 5,336.76 : x
2. Step 2: Convert to fraction form
   9,112.38/12,578.25 = 5,336.76/x
3. Step 3: Cross multiply
   9,112.38x = 12,578.25 × 5,336.76
4. Step 4: Simplify right side
   9,112.38x = 67,127,101.47
5. Step 5: Solve for x
   x = 67,127,101.47/9,112.38
6. Step 6: Final answer
   x = 7,366.58