Finding the Fourth Proportional to 196,790.31, 271,607.18 and 111,902.31

Step by Step Solution

1. Step 1: Write the proportion equation
   196,790.31 : 271,607.18 = 111,902.31 : x
2. Step 2: Convert to fraction form
   196,790.31/271,607.18 = 111,902.31/x
3. Step 3: Cross multiply
   196,790.31x = 271,607.18 × 111,902.31
4. Step 4: Simplify right side
   196,790.31x = 30,393,470,295.07
5. Step 5: Solve for x
   x = 30,393,470,295.07/196,790.31
6. Step 6: Final answer
   x = 154,445.97