Finding the Fourth Proportional to 410,061.99, 565,884.71 and 228,763.10

Step by Step Solution

1. Step 1: Write the proportion equation
   410,061.99 : 565,884.71 = 228,763.10 : x
2. Step 2: Convert to fraction form
   410,061.99/565,884.71 = 228,763.10/x
3. Step 3: Cross multiply
   410,061.99x = 565,884.71 × 228,763.10
4. Step 4: Simplify right side
   410,061.99x = 129,453,543,628.87
5. Step 5: Solve for x
   x = 129,453,543,628.87/410,061.99
6. Step 6: Final answer
   x = 315,692.62