Finding the Fourth Proportional to 295,686.72, 408,047.04 and 161,550.72

Step by Step Solution

1. Step 1: Write the proportion equation
   295,686.72 : 408,047.04 = 161,550.72 : x
2. Step 2: Convert to fraction form
   295,686.72/408,047.04 = 161,550.72/x
3. Step 3: Cross multiply
   295,686.72x = 408,047.04 × 161,550.72
4. Step 4: Simplify right side
   295,686.72x = 65,920,293,105.87
5. Step 5: Solve for x
   x = 65,920,293,105.87/295,686.72
6. Step 6: Final answer
   x = 222,939.65