Finding the Fourth Proportional to 89,608.39, 123,658.60 and 49,321.29

Step by Step Solution

1. Step 1: Write the proportion equation
   89,608.39 : 123,658.60 = 49,321.29 : x
2. Step 2: Convert to fraction form
   89,608.39/123,658.60 = 49,321.29/x
3. Step 3: Cross multiply
   89,608.39x = 123,658.60 × 49,321.29
4. Step 4: Simplify right side
   89,608.39x = 6,099,001,671.59
5. Step 5: Solve for x
   x = 6,099,001,671.59/89,608.39
6. Step 6: Final answer
   x = 68,062.84