Finding the Fourth Proportional to 510,375.38, 765,048.42 and 320,971.10

Step by Step Solution

1. Step 1: Write the proportion equation
   510,375.38 : 765,048.42 = 320,971.10 : x
2. Step 2: Convert to fraction form
   510,375.38/765,048.42 = 320,971.10/x
3. Step 3: Cross multiply
   510,375.38x = 765,048.42 × 320,971.10
4. Step 4: Simplify right side
   510,375.38x = 245,558,429,095.42
5. Step 5: Solve for x
   x = 245,558,429,095.42/510,375.38
6. Step 6: Final answer
   x = 481,132.99