Finding the Fourth Proportional to 10,851.42, 16,277.27 and 3,455.85

Step by Step Solution

1. Step 1: Write the proportion equation
   10,851.42 : 16,277.27 = 3,455.85 : x
2. Step 2: Convert to fraction form
   10,851.42/16,277.27 = 3,455.85/x
3. Step 3: Cross multiply
   10,851.42x = 16,277.27 × 3,455.85
4. Step 4: Simplify right side
   10,851.42x = 56,251,786.25
5. Step 5: Solve for x
   x = 56,251,786.25/10,851.42
6. Step 6: Final answer
   x = 5,183.82