Finding the Fourth Proportional to 11,960.20, 17,919.42 and 7,793.56

Step by Step Solution

1. Step 1: Write the proportion equation
   11,960.20 : 17,919.42 = 7,793.56 : x
2. Step 2: Convert to fraction form
   11,960.20/17,919.42 = 7,793.56/x
3. Step 3: Cross multiply
   11,960.20x = 17,919.42 × 7,793.56
4. Step 4: Simplify right side
   11,960.20x = 139,656,074.94
5. Step 5: Solve for x
   x = 139,656,074.94/11,960.20
6. Step 6: Final answer
   x = 11,676.73