Finding the Fourth Proportional to 225,401.74, 311,058.22 and 123,425.57

Step by Step Solution

1. Step 1: Write the proportion equation
   225,401.74 : 311,058.22 = 123,425.57 : x
2. Step 2: Convert to fraction form
   225,401.74/311,058.22 = 123,425.57/x
3. Step 3: Cross multiply
   225,401.74x = 311,058.22 × 123,425.57
4. Step 4: Simplify right side
   225,401.74x = 38,392,538,106.69
5. Step 5: Solve for x
   x = 38,392,538,106.69/225,401.74
6. Step 6: Final answer
   x = 170,329.38