Finding the Fourth Proportional to 78,078.26, 107,747.97 and 42,268.25

Step by Step Solution

1. Step 1: Write the proportion equation
   78,078.26 : 107,747.97 = 42,268.25 : x
2. Step 2: Convert to fraction form
   78,078.26/107,747.97 = 42,268.25/x
3. Step 3: Cross multiply
   78,078.26x = 107,747.97 × 42,268.25
4. Step 4: Simplify right side
   78,078.26x = 4,554,317,594.21
5. Step 5: Solve for x
   x = 4,554,317,594.21/78,078.26
6. Step 6: Final answer
   x = 58,330.17