Finding the Fourth Proportional to 89,469.78, 123,471.06 and 49,186.62

Step by Step Solution

1. Step 1: Write the proportion equation
   89,469.78 : 123,471.06 = 49,186.62 : x
2. Step 2: Convert to fraction form
   89,469.78/123,471.06 = 49,186.62/x
3. Step 3: Cross multiply
   89,469.78x = 123,471.06 × 49,186.62
4. Step 4: Simplify right side
   89,469.78x = 6,073,124,109.22
5. Step 5: Solve for x
   x = 6,073,124,109.22/89,469.78
6. Step 6: Final answer
   x = 67,879.05