Finding the Fourth Proportional to 196,536.81, 271,221.72 and 111,658.53

Step by Step Solution

1. Step 1: Write the proportion equation
   196,536.81 : 271,221.72 = 111,658.53 : x
2. Step 2: Convert to fraction form
   196,536.81/271,221.72 = 111,658.53/x
3. Step 3: Cross multiply
   196,536.81x = 271,221.72 × 111,658.53
4. Step 4: Simplify right side
   196,536.81x = 30,284,218,559.27
5. Step 5: Solve for x
   x = 30,284,218,559.27/196,536.81
6. Step 6: Final answer
   x = 154,089.30