Finding the Fourth Proportional to 574,363.72, 861,939.30 and 200,386.72

Step by Step Solution

1. Step 1: Write the proportion equation
   574,363.72 : 861,939.30 = 200,386.72 : x
2. Step 2: Convert to fraction form
   574,363.72/861,939.30 = 200,386.72/x
3. Step 3: Cross multiply
   574,363.72x = 861,939.30 × 200,386.72
4. Step 4: Simplify right side
   574,363.72x = 172,721,189,166.10
5. Step 5: Solve for x
   x = 172,721,189,166.10/574,363.72
6. Step 6: Final answer
   x = 300,717.44