Finding the Fourth Proportional to 196,721.42, 271,493.44 and 111,838.28

Step by Step Solution

1. Step 1: Write the proportion equation
   196,721.42 : 271,493.44 = 111,838.28 : x
2. Step 2: Convert to fraction form
   196,721.42/271,493.44 = 111,838.28/x
3. Step 3: Cross multiply
   196,721.42x = 271,493.44 × 111,838.28
4. Step 4: Simplify right side
   196,721.42x = 30,363,357,723.82
5. Step 5: Solve for x
   x = 30,363,357,723.82/196,721.42
6. Step 6: Final answer
   x = 154,346.99