Finding the Fourth Proportional to 85,867.41, 118,474.61 and 49,559.97

Step by Step Solution

1. Step 1: Write the proportion equation
   85,867.41 : 118,474.61 = 49,559.97 : x
2. Step 2: Convert to fraction form
   85,867.41/118,474.61 = 49,559.97/x
3. Step 3: Cross multiply
   85,867.41x = 118,474.61 × 49,559.97
4. Step 4: Simplify right side
   85,867.41x = 5,871,597,869.56
5. Step 5: Solve for x
   x = 5,871,597,869.56/85,867.41
6. Step 6: Final answer
   x = 68,379.82