Finding the Fourth Proportional to 10,851.83, 16,278.94 and 3,454.55

Step by Step Solution

1. Step 1: Write the proportion equation
   10,851.83 : 16,278.94 = 3,454.55 : x
2. Step 2: Convert to fraction form
   10,851.83/16,278.94 = 3,454.55/x
3. Step 3: Cross multiply
   10,851.83x = 16,278.94 × 3,454.55
4. Step 4: Simplify right side
   10,851.83x = 56,236,468.28
5. Step 5: Solve for x
   x = 56,236,468.28/10,851.83
6. Step 6: Final answer
   x = 5,182.21