Finding the Fourth Proportional to 10,979.42, 16,465.22 and 3,957.54

Step by Step Solution

1. Step 1: Write the proportion equation
   10,979.42 : 16,465.22 = 3,957.54 : x
2. Step 2: Convert to fraction form
   10,979.42/16,465.22 = 3,957.54/x
3. Step 3: Cross multiply
   10,979.42x = 16,465.22 × 3,957.54
4. Step 4: Simplify right side
   10,979.42x = 65,161,766.76
5. Step 5: Solve for x
   x = 65,161,766.76/10,979.42
6. Step 6: Final answer
   x = 5,934.90