Finding the Fourth Proportional to 89,456.75, 123,453.12 and 49,173.62

Step by Step Solution

1. Step 1: Write the proportion equation
   89,456.75 : 123,453.12 = 49,173.62 : x
2. Step 2: Convert to fraction form
   89,456.75/123,453.12 = 49,173.62/x
3. Step 3: Cross multiply
   89,456.75x = 123,453.12 × 49,173.62
4. Step 4: Simplify right side
   89,456.75x = 6,070,636,810.69
5. Step 5: Solve for x
   x = 6,070,636,810.69/89,456.75
6. Step 6: Final answer
   x = 67,861.14