Finding the Fourth Proportional to 196,388.23, 271,013.31 and 111,499.83

Step by Step Solution

1. Step 1: Write the proportion equation
   196,388.23 : 271,013.31 = 111,499.83 : x
2. Step 2: Convert to fraction form
   196,388.23/271,013.31 = 111,499.83/x
3. Step 3: Cross multiply
   196,388.23x = 271,013.31 × 111,499.83
4. Step 4: Simplify right side
   196,388.23x = 30,217,937,992.74
5. Step 5: Solve for x
   x = 30,217,937,992.74/196,388.23
6. Step 6: Final answer
   x = 153,868.38