Finding the Fourth Proportional to 367,066.05, 550,435.05 and 142,351.80

Step by Step Solution

1. Step 1: Write the proportion equation
   367,066.05 : 550,435.05 = 142,351.80 : x
2. Step 2: Convert to fraction form
   367,066.05/550,435.05 = 142,351.80/x
3. Step 3: Cross multiply
   367,066.05x = 550,435.05 × 142,351.80
4. Step 4: Simplify right side
   367,066.05x = 78,355,420,150.59
5. Step 5: Solve for x
   x = 78,355,420,150.59/367,066.05
6. Step 6: Final answer
   x = 213,464.09