Finding the Fourth Proportional to 411,614.30, 567,849.83 and 290,859.10

Step by Step Solution

1. Step 1: Write the proportion equation
   411,614.30 : 567,849.83 = 290,859.10 : x
2. Step 2: Convert to fraction form
   411,614.30/567,849.83 = 290,859.10/x
3. Step 3: Cross multiply
   411,614.30x = 567,849.83 × 290,859.10
4. Step 4: Simplify right side
   411,614.30x = 165,164,287,615.03
5. Step 5: Solve for x
   x = 165,164,287,615.03/411,614.30
6. Step 6: Final answer
   x = 401,259.84