Finding the Fourth Proportional to 165,123.10, 227,939.62 and 111,480.78

Step by Step Solution

1. Step 1: Write the proportion equation
   165,123.10 : 227,939.62 = 111,480.78 : x
2. Step 2: Convert to fraction form
   165,123.10/227,939.62 = 111,480.78/x
3. Step 3: Cross multiply
   165,123.10x = 227,939.62 × 111,480.78
4. Step 4: Simplify right side
   165,123.10x = 25,410,886,630.50
5. Step 5: Solve for x
   x = 25,410,886,630.50/165,123.10
6. Step 6: Final answer
   x = 153,890.56