Finding the Fourth Proportional to 89,297.34, 123,229.55 and 49,012.80

Step by Step Solution

1. Step 1: Write the proportion equation
   89,297.34 : 123,229.55 = 49,012.80 : x
2. Step 2: Convert to fraction form
   89,297.34/123,229.55 = 49,012.80/x
3. Step 3: Cross multiply
   89,297.34x = 123,229.55 × 49,012.80
4. Step 4: Simplify right side
   89,297.34x = 6,039,824,948.66
5. Step 5: Solve for x
   x = 6,039,824,948.66/89,297.34
6. Step 6: Final answer
   x = 67,637.24