Finding the Fourth Proportional to 225,404.49, 311,062.02 and 123,428.33

Step by Step Solution

1. Step 1: Write the proportion equation
   225,404.49 : 311,062.02 = 123,428.33 : x
2. Step 2: Convert to fraction form
   225,404.49/311,062.02 = 123,428.33/x
3. Step 3: Cross multiply
   225,404.49x = 311,062.02 × 123,428.33
4. Step 4: Simplify right side
   225,404.49x = 38,393,864,099.72
5. Step 5: Solve for x
   x = 38,393,864,099.72/225,404.49
6. Step 6: Final answer
   x = 170,333.18