Finding the Fourth Proportional to 196,438.86, 271,087.52 and 111,556.53

Step by Step Solution

1. Step 1: Write the proportion equation
   196,438.86 : 271,087.52 = 111,556.53 : x
2. Step 2: Convert to fraction form
   196,438.86/271,087.52 = 111,556.53/x
3. Step 3: Cross multiply
   196,438.86x = 271,087.52 × 111,556.53
4. Step 4: Simplify right side
   196,438.86x = 30,241,583,057.51
5. Step 5: Solve for x
   x = 30,241,583,057.51/196,438.86
6. Step 6: Final answer
   x = 153,949.09