Finding the Fourth Proportional to 196,339, 270,947.67 and 111,456.06

Step by Step Solution

1. Step 1: Write the proportion equation
   196,339 : 270,947.67 = 111,456.06 : x
2. Step 2: Convert to fraction form
   196,339/270,947.67 = 111,456.06/x
3. Step 3: Cross multiply
   196,339x = 270,947.67 × 111,456.06
4. Step 4: Simplify right side
   196,339x = 30,198,759,764.38
5. Step 5: Solve for x
   x = 30,198,759,764.38/196,339
6. Step 6: Final answer
   x = 153,809.28