Finding the Fourth Proportional to 80,137.97, 120,100.77 and 42,617.25

Step by Step Solution

1. Step 1: Write the proportion equation
   80,137.97 : 120,100.77 = 42,617.25 : x
2. Step 2: Convert to fraction form
   80,137.97/120,100.77 = 42,617.25/x
3. Step 3: Cross multiply
   80,137.97x = 120,100.77 × 42,617.25
4. Step 4: Simplify right side
   80,137.97x = 5,118,364,540.28
5. Step 5: Solve for x
   x = 5,118,364,540.28/80,137.97
6. Step 6: Final answer
   x = 63,869.41