Finding the Fourth Proportional to 11,578.73, 15,981.69 and 7,994.27

Step by Step Solution

1. Step 1: Write the proportion equation
   11,578.73 : 15,981.69 = 7,994.27 : x
2. Step 2: Convert to fraction form
   11,578.73/15,981.69 = 7,994.27/x
3. Step 3: Cross multiply
   11,578.73x = 15,981.69 × 7,994.27
4. Step 4: Simplify right side
   11,578.73x = 127,762,014.85
5. Step 5: Solve for x
   x = 127,762,014.85/11,578.73
6. Step 6: Final answer
   x = 11,034.20