Finding the Fourth Proportional to 196,451.72, 271,026.78 and 111,557.24

Step by Step Solution

1. Step 1: Write the proportion equation
   196,451.72 : 271,026.78 = 111,557.24 : x
2. Step 2: Convert to fraction form
   196,451.72/271,026.78 = 111,557.24/x
3. Step 3: Cross multiply
   196,451.72x = 271,026.78 × 111,557.24
4. Step 4: Simplify right side
   196,451.72x = 30,234,999,542.89
5. Step 5: Solve for x
   x = 30,234,999,542.89/196,451.72
6. Step 6: Final answer
   x = 153,905.50