Finding the Fourth Proportional to 196,539.98, 271,232.43 and 111,671.42

Step by Step Solution

1. Step 1: Write the proportion equation
   196,539.98 : 271,232.43 = 111,671.42 : x
2. Step 2: Convert to fraction form
   196,539.98/271,232.43 = 111,671.42/x
3. Step 3: Cross multiply
   196,539.98x = 271,232.43 × 111,671.42
4. Step 4: Simplify right side
   196,539.98x = 30,288,910,608.15
5. Step 5: Solve for x
   x = 30,288,910,608.15/196,539.98
6. Step 6: Final answer
   x = 154,110.68