Finding the Fourth Proportional to 196,123.92, 270,610.92 and 111,218.64

Step by Step Solution

1. Step 1: Write the proportion equation
   196,123.92 : 270,610.92 = 111,218.64 : x
2. Step 2: Convert to fraction form
   196,123.92/270,610.92 = 111,218.64/x
3. Step 3: Cross multiply
   196,123.92x = 270,610.92 × 111,218.64
4. Step 4: Simplify right side
   196,123.92x = 30,096,978,491.55
5. Step 5: Solve for x
   x = 30,096,978,491.55/196,123.92
6. Step 6: Final answer
   x = 153,458.99