Finding the Fourth Proportional to 196,406.89, 271,020.45 and 131,863.05

Step by Step Solution

1. Step 1: Write the proportion equation
   196,406.89 : 271,020.45 = 131,863.05 : x
2. Step 2: Convert to fraction form
   196,406.89/271,020.45 = 131,863.05/x
3. Step 3: Cross multiply
   196,406.89x = 271,020.45 × 131,863.05
4. Step 4: Simplify right side
   196,406.89x = 35,737,583,149.37
5. Step 5: Solve for x
   x = 35,737,583,149.37/196,406.89
6. Step 6: Final answer
   x = 181,956.87