Finding the Fourth Proportional to 89,786.86, 123,906.18 and 49,499.74

Step by Step Solution

1. Step 1: Write the proportion equation
   89,786.86 : 123,906.18 = 49,499.74 : x
2. Step 2: Convert to fraction form
   89,786.86/123,906.18 = 49,499.74/x
3. Step 3: Cross multiply
   89,786.86x = 123,906.18 × 49,499.74
4. Step 4: Simplify right side
   89,786.86x = 6,133,323,694.39
5. Step 5: Solve for x
   x = 6,133,323,694.39/89,786.86
6. Step 6: Final answer
   x = 68,309.81