Finding the Fourth Proportional to 435,269.34, 649,369.50 and 411,727.50

Step by Step Solution

1. Step 1: Write the proportion equation
   435,269.34 : 649,369.50 = 411,727.50 : x
2. Step 2: Convert to fraction form
   435,269.34/649,369.50 = 411,727.50/x
3. Step 3: Cross multiply
   435,269.34x = 649,369.50 × 411,727.50
4. Step 4: Simplify right side
   435,269.34x = 267,363,280,811.25
5. Step 5: Solve for x
   x = 267,363,280,811.25/435,269.34
6. Step 6: Final answer
   x = 614,247.91