Finding the Fourth Proportional to 89,789.35, 123,907 and 49,502.17

Step by Step Solution

1. Step 1: Write the proportion equation
   89,789.35 : 123,907 = 49,502.17 : x
2. Step 2: Convert to fraction form
   89,789.35/123,907 = 49,502.17/x
3. Step 3: Cross multiply
   89,789.35x = 123,907 × 49,502.17
4. Step 4: Simplify right side
   89,789.35x = 6,133,665,378.19
5. Step 5: Solve for x
   x = 6,133,665,378.19/89,789.35
6. Step 6: Final answer
   x = 68,311.72