Finding the Fourth Proportional to 196,791.31, 271,608.56 and 111,903.31

Step by Step Solution

1. Step 1: Write the proportion equation
   196,791.31 : 271,608.56 = 111,903.31 : x
2. Step 2: Convert to fraction form
   196,791.31/271,608.56 = 111,903.31/x
3. Step 3: Cross multiply
   196,791.31x = 271,608.56 × 111,903.31
4. Step 4: Simplify right side
   196,791.31x = 30,393,896,888.33
5. Step 5: Solve for x
   x = 30,393,896,888.33/196,791.31
6. Step 6: Final answer
   x = 154,447.35