Finding the Fourth Proportional to 411,071.99, 567,239.47 and 258,061.27

Step by Step Solution

1. Step 1: Write the proportion equation
   411,071.99 : 567,239.47 = 258,061.27 : x
2. Step 2: Convert to fraction form
   411,071.99/567,239.47 = 258,061.27/x
3. Step 3: Cross multiply
   411,071.99x = 567,239.47 × 258,061.27
4. Step 4: Simplify right side
   411,071.99x = 146,382,538,022.33
5. Step 5: Solve for x
   x = 146,382,538,022.33/411,071.99
6. Step 6: Final answer
   x = 356,099.52