Finding the Fourth Proportional to 270,661.72, 406,016.52 and 70,981.42

Step by Step Solution

1. Step 1: Write the proportion equation
   270,661.72 : 406,016.52 = 70,981.42 : x
2. Step 2: Convert to fraction form
   270,661.72/406,016.52 = 70,981.42/x
3. Step 3: Cross multiply
   270,661.72x = 406,016.52 × 70,981.42
4. Step 4: Simplify right side
   270,661.72x = 28,819,629,133.06
5. Step 5: Solve for x
   x = 28,819,629,133.06/270,661.72
6. Step 6: Final answer
   x = 106,478.41