Finding the Fourth Proportional to 492,067.86, 738,164.22 and 192,510

Step by Step Solution

1. Step 1: Write the proportion equation
   492,067.86 : 738,164.22 = 192,510 : x
2. Step 2: Convert to fraction form
   492,067.86/738,164.22 = 192,510/x
3. Step 3: Cross multiply
   492,067.86x = 738,164.22 × 192,510
4. Step 4: Simplify right side
   492,067.86x = 142,103,993,992.20
5. Step 5: Solve for x
   x = 142,103,993,992.20/492,067.86
6. Step 6: Final answer
   x = 288,789.42