Finding the Fourth Proportional to 165,105.57, 227,845.98 and 89,654.07

Step by Step Solution

1. Step 1: Write the proportion equation
   165,105.57 : 227,845.98 = 89,654.07 : x
2. Step 2: Convert to fraction form
   165,105.57/227,845.98 = 89,654.07/x
3. Step 3: Cross multiply
   165,105.57x = 227,845.98 × 89,654.07
4. Step 4: Simplify right side
   165,105.57x = 20,427,319,440.14
5. Step 5: Solve for x
   x = 20,427,319,440.14/165,105.57
6. Step 6: Final answer
   x = 123,722.78