Finding the Fourth Proportional to 196,389.72, 271,043.10 and 119,892.78

Step by Step Solution

1. Step 1: Write the proportion equation
   196,389.72 : 271,043.10 = 119,892.78 : x
2. Step 2: Convert to fraction form
   196,389.72/271,043.10 = 119,892.78/x
3. Step 3: Cross multiply
   196,389.72x = 271,043.10 × 119,892.78
4. Step 4: Simplify right side
   196,389.72x = 32,496,110,758.82
5. Step 5: Solve for x
   x = 32,496,110,758.82/196,389.72
6. Step 6: Final answer
   x = 165,467.47