Finding the Fourth Proportional to 89,309.82, 123,240.78 and 49,017.18

Step by Step Solution

1. Step 1: Write the proportion equation
   89,309.82 : 123,240.78 = 49,017.18 : x
2. Step 2: Convert to fraction form
   89,309.82/123,240.78 = 49,017.18/x
3. Step 3: Cross multiply
   89,309.82x = 123,240.78 × 49,017.18
4. Step 4: Simplify right side
   89,309.82x = 6,040,915,496.60
5. Step 5: Solve for x
   x = 6,040,915,496.60/89,309.82
6. Step 6: Final answer
   x = 67,639.99