Finding the Fourth Proportional to 309,971.72, 464,952.72 and 169,653.80

Step by Step Solution

1. Step 1: Write the proportion equation
   309,971.72 : 464,952.72 = 169,653.80 : x
2. Step 2: Convert to fraction form
   309,971.72/464,952.72 = 169,653.80/x
3. Step 3: Cross multiply
   309,971.72x = 464,952.72 × 169,653.80
4. Step 4: Simplify right side
   309,971.72x = 78,880,995,768.34
5. Step 5: Solve for x
   x = 78,880,995,768.34/309,971.72
6. Step 6: Final answer
   x = 254,478.04