Finding the Fourth Proportional to 105,879.99, 158,786.25 and 34,786.12

Step by Step Solution

1. Step 1: Write the proportion equation
   105,879.99 : 158,786.25 = 34,786.12 : x
2. Step 2: Convert to fraction form
   105,879.99/158,786.25 = 34,786.12/x
3. Step 3: Cross multiply
   105,879.99x = 158,786.25 × 34,786.12
4. Step 4: Simplify right side
   105,879.99x = 5,523,557,546.85
5. Step 5: Solve for x
   x = 5,523,557,546.85/105,879.99
6. Step 6: Final answer
   x = 52,168.10