Finding the Fourth Proportional to 89,443.29, 123,434.69 and 49,158.48

Step by Step Solution

1. Step 1: Write the proportion equation
   89,443.29 : 123,434.69 = 49,158.48 : x
2. Step 2: Convert to fraction form
   89,443.29/123,434.69 = 49,158.48/x
3. Step 3: Cross multiply
   89,443.29x = 123,434.69 × 49,158.48
4. Step 4: Simplify right side
   89,443.29x = 6,067,861,245.39
5. Step 5: Solve for x
   x = 6,067,861,245.39/89,443.29
6. Step 6: Final answer
   x = 67,840.32