Finding the Fourth Proportional to 196,708.72, 271,481.88 and 111,846.64

Step by Step Solution

1. Step 1: Write the proportion equation
   196,708.72 : 271,481.88 = 111,846.64 : x
2. Step 2: Convert to fraction form
   196,708.72/271,481.88 = 111,846.64/x
3. Step 3: Cross multiply
   196,708.72x = 271,481.88 × 111,846.64
4. Step 4: Simplify right side
   196,708.72x = 30,364,336,098.88
5. Step 5: Solve for x
   x = 30,364,336,098.88/196,708.72
6. Step 6: Final answer
   x = 154,361.92