Finding the Fourth Proportional to 89,459.55, 123,456.51 and 49,174.38

Step by Step Solution

1. Step 1: Write the proportion equation
   89,459.55 : 123,456.51 = 49,174.38 : x
2. Step 2: Convert to fraction form
   89,459.55/123,456.51 = 49,174.38/x
3. Step 3: Cross multiply
   89,459.55x = 123,456.51 × 49,174.38
4. Step 4: Simplify right side
   89,459.55x = 6,070,897,336.21
5. Step 5: Solve for x
   x = 6,070,897,336.21/89,459.55
6. Step 6: Final answer
   x = 67,861.93