Finding the Fourth Proportional to 89,786.08, 123,904.34 and 49,499.72

Step by Step Solution

1. Step 1: Write the proportion equation
   89,786.08 : 123,904.34 = 49,499.72 : x
2. Step 2: Convert to fraction form
   89,786.08/123,904.34 = 49,499.72/x
3. Step 3: Cross multiply
   89,786.08x = 123,904.34 × 49,499.72
4. Step 4: Simplify right side
   89,786.08x = 6,133,230,136.78
5. Step 5: Solve for x
   x = 6,133,230,136.78/89,786.08
6. Step 6: Final answer
   x = 68,309.37