Finding the Fourth Proportional to 367,062.30, 550,429.43 and 142,348.05

Step by Step Solution

1. Step 1: Write the proportion equation
   367,062.30 : 550,429.43 = 142,348.05 : x
2. Step 2: Convert to fraction form
   367,062.30/550,429.43 = 142,348.05/x
3. Step 3: Cross multiply
   367,062.30x = 550,429.43 × 142,348.05
4. Step 4: Simplify right side
   367,062.30x = 78,352,555,311.37
5. Step 5: Solve for x
   x = 78,352,555,311.37/367,062.30
6. Step 6: Final answer
   x = 213,458.47