Finding the Fourth Proportional to 89,710.16, 123,805.60 and 49,423.91

Step by Step Solution

1. Step 1: Write the proportion equation
   89,710.16 : 123,805.60 = 49,423.91 : x
2. Step 2: Convert to fraction form
   89,710.16/123,805.60 = 49,423.91/x
3. Step 3: Cross multiply
   89,710.16x = 123,805.60 × 49,423.91
4. Step 4: Simplify right side
   89,710.16x = 6,118,957,017.85
5. Step 5: Solve for x
   x = 6,118,957,017.85/89,710.16
6. Step 6: Final answer
   x = 68,208.07