Finding the Fourth Proportional to 89,016.50, 122,842.78 and 49,272.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,016.50 : 122,842.78 = 49,272.50 : x
2. Step 2: Convert to fraction form
   89,016.50/122,842.78 = 49,272.50/x
3. Step 3: Cross multiply
   89,016.50x = 122,842.78 × 49,272.50
4. Step 4: Simplify right side
   89,016.50x = 6,052,770,877.55
5. Step 5: Solve for x
   x = 6,052,770,877.55/89,016.50
6. Step 6: Final answer
   x = 67,996.06