Finding the Fourth Proportional to 196,264.89, 270,859.55 and 111,387.42

Step by Step Solution

1. Step 1: Write the proportion equation
   196,264.89 : 270,859.55 = 111,387.42 : x
2. Step 2: Convert to fraction form
   196,264.89/270,859.55 = 111,387.42/x
3. Step 3: Cross multiply
   196,264.89x = 270,859.55 × 111,387.42
4. Step 4: Simplify right side
   196,264.89x = 30,170,345,899.92
5. Step 5: Solve for x
   x = 30,170,345,899.92/196,264.89
6. Step 6: Final answer
   x = 153,722.58