Finding the Fourth Proportional to 510,938.82, 765,729.18 and 271,003.32

Step by Step Solution

1. Step 1: Write the proportion equation
   510,938.82 : 765,729.18 = 271,003.32 : x
2. Step 2: Convert to fraction form
   510,938.82/765,729.18 = 271,003.32/x
3. Step 3: Cross multiply
   510,938.82x = 765,729.18 × 271,003.32
4. Step 4: Simplify right side
   510,938.82x = 207,515,150,000.88
5. Step 5: Solve for x
   x = 207,515,150,000.88/510,938.82
6. Step 6: Final answer
   x = 406,144.81