Finding the Fourth Proportional to 165,109, 227,853.26 and 89,657.50

Step by Step Solution

1. Step 1: Write the proportion equation
   165,109 : 227,853.26 = 89,657.50 : x
2. Step 2: Convert to fraction form
   165,109/227,853.26 = 89,657.50/x
3. Step 3: Cross multiply
   165,109x = 227,853.26 × 89,657.50
4. Step 4: Simplify right side
   165,109x = 20,428,753,658.45
5. Step 5: Solve for x
   x = 20,428,753,658.45/165,109
6. Step 6: Final answer
   x = 123,728.89