Finding the Fourth Proportional to 89,678.50, 123,761.94 and 49,392.25

Step by Step Solution

1. Step 1: Write the proportion equation
   89,678.50 : 123,761.94 = 49,392.25 : x
2. Step 2: Convert to fraction form
   89,678.50/123,761.94 = 49,392.25/x
3. Step 3: Cross multiply
   89,678.50x = 123,761.94 × 49,392.25
4. Step 4: Simplify right side
   89,678.50x = 6,112,880,680.97
5. Step 5: Solve for x
   x = 6,112,880,680.97/89,678.50
6. Step 6: Final answer
   x = 68,164.39