Finding the Fourth Proportional to 309,969.72, 464,949.72 and 169,651.80

Step by Step Solution

1. Step 1: Write the proportion equation
   309,969.72 : 464,949.72 = 169,651.80 : x
2. Step 2: Convert to fraction form
   309,969.72/464,949.72 = 169,651.80/x
3. Step 3: Cross multiply
   309,969.72x = 464,949.72 × 169,651.80
4. Step 4: Simplify right side
   309,969.72x = 78,879,556,907.50
5. Step 5: Solve for x
   x = 78,879,556,907.50/309,969.72
6. Step 6: Final answer
   x = 254,475.04