Finding the Fourth Proportional to 196,389.72, 271,025.64 and 111,514.68

Step by Step Solution

1. Step 1: Write the proportion equation
   196,389.72 : 271,025.64 = 111,514.68 : x
2. Step 2: Convert to fraction form
   196,389.72/271,025.64 = 111,514.68/x
3. Step 3: Cross multiply
   196,389.72x = 271,025.64 × 111,514.68
4. Step 4: Simplify right side
   196,389.72x = 30,223,337,516.40
5. Step 5: Solve for x
   x = 30,223,337,516.40/196,389.72
6. Step 6: Final answer
   x = 153,894.70