Finding the Fourth Proportional to 165,057, 227,781.42 and 89,605.50

Step by Step Solution

1. Step 1: Write the proportion equation
   165,057 : 227,781.42 = 89,605.50 : x
2. Step 2: Convert to fraction form
   165,057/227,781.42 = 89,605.50/x
3. Step 3: Cross multiply
   165,057x = 227,781.42 × 89,605.50
4. Step 4: Simplify right side
   165,057x = 20,410,468,029.81
5. Step 5: Solve for x
   x = 20,410,468,029.81/165,057
6. Step 6: Final answer
   x = 123,657.09