Finding the Fourth Proportional to 225,401.99, 311,058.57 and 123,425.83

Step by Step Solution

1. Step 1: Write the proportion equation
   225,401.99 : 311,058.57 = 123,425.83 : x
2. Step 2: Convert to fraction form
   225,401.99/311,058.57 = 123,425.83/x
3. Step 3: Cross multiply
   225,401.99x = 311,058.57 × 123,425.83
4. Step 4: Simplify right side
   225,401.99x = 38,392,660,625.57
5. Step 5: Solve for x
   x = 38,392,660,625.57/225,401.99
6. Step 6: Final answer
   x = 170,329.73