Finding the Fourth Proportional to 89,578, 123,617.76 and 49,834

Step by Step Solution

1. Step 1: Write the proportion equation
   89,578 : 123,617.76 = 49,834 : x
2. Step 2: Convert to fraction form
   89,578/123,617.76 = 49,834/x
3. Step 3: Cross multiply
   89,578x = 123,617.76 × 49,834
4. Step 4: Simplify right side
   89,578x = 6,160,367,451.84
5. Step 5: Solve for x
   x = 6,160,367,451.84/89,578
6. Step 6: Final answer
   x = 68,770.99