Finding the Fourth Proportional to 300,216.38, 414,311.56 and 166,080.38

Step by Step Solution

1. Step 1: Write the proportion equation
   300,216.38 : 414,311.56 = 166,080.38 : x
2. Step 2: Convert to fraction form
   300,216.38/414,311.56 = 166,080.38/x
3. Step 3: Cross multiply
   300,216.38x = 414,311.56 × 166,080.38
4. Step 4: Simplify right side
   300,216.38x = 68,809,018,836.43
5. Step 5: Solve for x
   x = 68,809,018,836.43/300,216.38
6. Step 6: Final answer
   x = 229,198.09