Finding the Fourth Proportional to 115,144.62, 158,965.50 and 76,968.83

Step by Step Solution

1. Step 1: Write the proportion equation
   115,144.62 : 158,965.50 = 76,968.83 : x
2. Step 2: Convert to fraction form
   115,144.62/158,965.50 = 76,968.83/x
3. Step 3: Cross multiply
   115,144.62x = 158,965.50 × 76,968.83
4. Step 4: Simplify right side
   115,144.62x = 12,235,389,231.41
5. Step 5: Solve for x
   x = 12,235,389,231.41/115,144.62
6. Step 6: Final answer
   x = 106,261.06