Finding the Fourth Proportional to 89,451.34, 123,443.19 and 49,168.62

Step by Step Solution

1. Step 1: Write the proportion equation
   89,451.34 : 123,443.19 = 49,168.62 : x
2. Step 2: Convert to fraction form
   89,451.34/123,443.19 = 49,168.62/x
3. Step 3: Cross multiply
   89,451.34x = 123,443.19 × 49,168.62
4. Step 4: Simplify right side
   89,451.34x = 6,069,531,300.70
5. Step 5: Solve for x
   x = 6,069,531,300.70/89,451.34
6. Step 6: Final answer
   x = 67,852.88