Finding the Fourth Proportional to 334,118.39, 501,605.27 and 287,034.71

Step by Step Solution

1. Step 1: Write the proportion equation
   334,118.39 : 501,605.27 = 287,034.71 : x
2. Step 2: Convert to fraction form
   334,118.39/501,605.27 = 287,034.71/x
3. Step 3: Cross multiply
   334,118.39x = 501,605.27 × 287,034.71
4. Step 4: Simplify right side
   334,118.39x = 143,978,123,208.92
5. Step 5: Solve for x
   x = 143,978,123,208.92/334,118.39
6. Step 6: Final answer
   x = 430,919.48