Finding the Fourth Proportional to 89,388.84, 123,359.70 and 49,106.28

Step by Step Solution

1. Step 1: Write the proportion equation
   89,388.84 : 123,359.70 = 49,106.28 : x
2. Step 2: Convert to fraction form
   89,388.84/123,359.70 = 49,106.28/x
3. Step 3: Cross multiply
   89,388.84x = 123,359.70 × 49,106.28
4. Step 4: Simplify right side
   89,388.84x = 6,057,735,968.92
5. Step 5: Solve for x
   x = 6,057,735,968.92/89,388.84
6. Step 6: Final answer
   x = 67,768.37