Finding the Fourth Proportional to 89,659.05, 123,729.51 and 49,372.73

Step by Step Solution

1. Step 1: Write the proportion equation
   89,659.05 : 123,729.51 = 49,372.73 : x
2. Step 2: Convert to fraction form
   89,659.05/123,729.51 = 49,372.73/x
3. Step 3: Cross multiply
   89,659.05x = 123,729.51 × 49,372.73
4. Step 4: Simplify right side
   89,659.05x = 6,108,863,071.61
5. Step 5: Solve for x
   x = 6,108,863,071.61/89,659.05
6. Step 6: Final answer
   x = 68,134.37