Finding the Fourth Proportional to 10,678.94, 16,016.81 and 2,781.59

Step by Step Solution

1. Step 1: Write the proportion equation
   10,678.94 : 16,016.81 = 2,781.59 : x
2. Step 2: Convert to fraction form
   10,678.94/16,016.81 = 2,781.59/x
3. Step 3: Cross multiply
   10,678.94x = 16,016.81 × 2,781.59
4. Step 4: Simplify right side
   10,678.94x = 44,552,218.10
5. Step 5: Solve for x
   x = 44,552,218.10/10,678.94
6. Step 6: Final answer
   x = 4,171.97