Finding the Fourth Proportional to 89,016.27, 122,839.44 and 48,729.20

Step by Step Solution

1. Step 1: Write the proportion equation
   89,016.27 : 122,839.44 = 48,729.20 : x
2. Step 2: Convert to fraction form
   89,016.27/122,839.44 = 48,729.20/x
3. Step 3: Cross multiply
   89,016.27x = 122,839.44 × 48,729.20
4. Step 4: Simplify right side
   89,016.27x = 5,985,866,842.72
5. Step 5: Solve for x
   x = 5,985,866,842.72/89,016.27
6. Step 6: Final answer
   x = 67,244.64