Finding the Fourth Proportional to 10,786.98, 16,179.41 and 3,391.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,786.98 : 16,179.41 = 3,391.25 : x
2. Step 2: Convert to fraction form
   10,786.98/16,179.41 = 3,391.25/x
3. Step 3: Cross multiply
   10,786.98x = 16,179.41 × 3,391.25
4. Step 4: Simplify right side
   10,786.98x = 54,868,326.31
5. Step 5: Solve for x
   x = 54,868,326.31/10,786.98
6. Step 6: Final answer
   x = 5,086.53