Finding the Fourth Proportional to 89,099.38, 122,888.91 and 65,217.34

Step by Step Solution

1. Step 1: Write the proportion equation
   89,099.38 : 122,888.91 = 65,217.34 : x
2. Step 2: Convert to fraction form
   89,099.38/122,888.91 = 65,217.34/x
3. Step 3: Cross multiply
   89,099.38x = 122,888.91 × 65,217.34
4. Step 4: Simplify right side
   89,099.38x = 8,014,487,825.70
5. Step 5: Solve for x
   x = 8,014,487,825.70/89,099.38
6. Step 6: Final answer
   x = 89,949.98