Finding the Fourth Proportional to 123,797.25, 170,879.13 and 79,085.25

Step by Step Solution

1. Step 1: Write the proportion equation
   123,797.25 : 170,879.13 = 79,085.25 : x
2. Step 2: Convert to fraction form
   123,797.25/170,879.13 = 79,085.25/x
3. Step 3: Cross multiply
   123,797.25x = 170,879.13 × 79,085.25
4. Step 4: Simplify right side
   123,797.25x = 13,514,018,715.83
5. Step 5: Solve for x
   x = 13,514,018,715.83/123,797.25
6. Step 6: Final answer
   x = 109,162.51