Finding the Fourth Proportional to 89,451.54, 123,443.39 and 49,169.43

Step by Step Solution

1. Step 1: Write the proportion equation
   89,451.54 : 123,443.39 = 49,169.43 : x
2. Step 2: Convert to fraction form
   89,451.54/123,443.39 = 49,169.43/x
3. Step 3: Cross multiply
   89,451.54x = 123,443.39 × 49,169.43
4. Step 4: Simplify right side
   89,451.54x = 6,069,641,246.49
5. Step 5: Solve for x
   x = 6,069,641,246.49/89,451.54
6. Step 6: Final answer
   x = 67,853.96