Finding the Fourth Proportional to 510,987.09, 765,757.89 and 283,383.42

Step by Step Solution

1. Step 1: Write the proportion equation
   510,987.09 : 765,757.89 = 283,383.42 : x
2. Step 2: Convert to fraction form
   510,987.09/765,757.89 = 283,383.42/x
3. Step 3: Cross multiply
   510,987.09x = 765,757.89 × 283,383.42
4. Step 4: Simplify right side
   510,987.09x = 217,003,089,760.18
5. Step 5: Solve for x
   x = 217,003,089,760.18/510,987.09
6. Step 6: Final answer
   x = 424,674.31