Finding the Fourth Proportional to 89,243.44, 123,158.24 and 50,478.09

Step by Step Solution

1. Step 1: Write the proportion equation
   89,243.44 : 123,158.24 = 50,478.09 : x
2. Step 2: Convert to fraction form
   89,243.44/123,158.24 = 50,478.09/x
3. Step 3: Cross multiply
   89,243.44x = 123,158.24 × 50,478.09
4. Step 4: Simplify right side
   89,243.44x = 6,216,792,198.02
5. Step 5: Solve for x
   x = 6,216,792,198.02/89,243.44
6. Step 6: Final answer
   x = 69,661.06