Finding the Fourth Proportional to 123,993.42, 171,112.83 and 67,405.02

Step by Step Solution

1. Step 1: Write the proportion equation
   123,993.42 : 171,112.83 = 67,405.02 : x
2. Step 2: Convert to fraction form
   123,993.42/171,112.83 = 67,405.02/x
3. Step 3: Cross multiply
   123,993.42x = 171,112.83 × 67,405.02
4. Step 4: Simplify right side
   123,993.42x = 11,533,863,728.41
5. Step 5: Solve for x
   x = 11,533,863,728.41/123,993.42
6. Step 6: Final answer
   x = 93,019.97