Finding the Fourth Proportional to 10,711.36, 16,066.56 and 2,920.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,711.36 : 16,066.56 = 2,920.48 : x
2. Step 2: Convert to fraction form
   10,711.36/16,066.56 = 2,920.48/x
3. Step 3: Cross multiply
   10,711.36x = 16,066.56 × 2,920.48
4. Step 4: Simplify right side
   10,711.36x = 46,922,067.15
5. Step 5: Solve for x
   x = 46,922,067.15/10,711.36
6. Step 6: Final answer
   x = 4,380.59