Finding the Fourth Proportional to 89,414.05, 123,393.67 and 49,128.84

Step by Step Solution

1. Step 1: Write the proportion equation
   89,414.05 : 123,393.67 = 49,128.84 : x
2. Step 2: Convert to fraction form
   89,414.05/123,393.67 = 49,128.84/x
3. Step 3: Cross multiply
   89,414.05x = 123,393.67 × 49,128.84
4. Step 4: Simplify right side
   89,414.05x = 6,062,187,870.44
5. Step 5: Solve for x
   x = 6,062,187,870.44/89,414.05
6. Step 6: Final answer
   x = 67,799.05