Finding the Fourth Proportional to 196,538.98, 271,231.05 and 111,670.42

Step by Step Solution

1. Step 1: Write the proportion equation
   196,538.98 : 271,231.05 = 111,670.42 : x
2. Step 2: Convert to fraction form
   196,538.98/271,231.05 = 111,670.42/x
3. Step 3: Cross multiply
   196,538.98x = 271,231.05 × 111,670.42
4. Step 4: Simplify right side
   196,538.98x = 30,288,485,270.54
5. Step 5: Solve for x
   x = 30,288,485,270.54/196,538.98
6. Step 6: Final answer
   x = 154,109.30