Finding the Fourth Proportional to 411,144.72, 617,028.66 and 174,653.34

Step by Step Solution

1. Step 1: Write the proportion equation
   411,144.72 : 617,028.66 = 174,653.34 : x
2. Step 2: Convert to fraction form
   411,144.72/617,028.66 = 174,653.34/x
3. Step 3: Cross multiply
   411,144.72x = 617,028.66 × 174,653.34
4. Step 4: Simplify right side
   411,144.72x = 107,766,116,344.72
5. Step 5: Solve for x
   x = 107,766,116,344.72/411,144.72
6. Step 6: Final answer
   x = 262,112.37