Finding the Fourth Proportional to 89,458.73, 123,456.29 and 49,175.55

Step by Step Solution

1. Step 1: Write the proportion equation
   89,458.73 : 123,456.29 = 49,175.55 : x
2. Step 2: Convert to fraction form
   89,458.73/123,456.29 = 49,175.55/x
3. Step 3: Cross multiply
   89,458.73x = 123,456.29 × 49,175.55
4. Step 4: Simplify right side
   89,458.73x = 6,071,030,961.71
5. Step 5: Solve for x
   x = 6,071,030,961.71/89,458.73
6. Step 6: Final answer
   x = 67,864.04