Finding the Fourth Proportional to 123,993.75, 171,112.59 and 67,406.34

Step by Step Solution

1. Step 1: Write the proportion equation
   123,993.75 : 171,112.59 = 67,406.34 : x
2. Step 2: Convert to fraction form
   123,993.75/171,112.59 = 67,406.34/x
3. Step 3: Cross multiply
   123,993.75x = 171,112.59 × 67,406.34
4. Step 4: Simplify right side
   123,993.75x = 11,534,073,419.82
5. Step 5: Solve for x
   x = 11,534,073,419.82/123,993.75
6. Step 6: Final answer
   x = 93,021.41