Finding the Fourth Proportional to 164,920.50, 227,590.38 and 89,469

Step by Step Solution

1. Step 1: Write the proportion equation
   164,920.50 : 227,590.38 = 89,469 : x
2. Step 2: Convert to fraction form
   164,920.50/227,590.38 = 89,469/x
3. Step 3: Cross multiply
   164,920.50x = 227,590.38 × 89,469
4. Step 4: Simplify right side
   164,920.50x = 20,362,283,708.22
5. Step 5: Solve for x
   x = 20,362,283,708.22/164,920.50
6. Step 6: Final answer
   x = 123,467.27