Finding the Fourth Proportional to 300,020.45, 414,028.17 and 164,054.50

Step by Step Solution

1. Step 1: Write the proportion equation
   300,020.45 : 414,028.17 = 164,054.50 : x
2. Step 2: Convert to fraction form
   300,020.45/414,028.17 = 164,054.50/x
3. Step 3: Cross multiply
   300,020.45x = 414,028.17 × 164,054.50
4. Step 4: Simplify right side
   300,020.45x = 67,923,183,380.19
5. Step 5: Solve for x
   x = 67,923,183,380.19/300,020.45
6. Step 6: Final answer
   x = 226,395.18