Finding the Fourth Proportional to 309,016.62, 463,452.30 and 174,139.47

Step by Step Solution

1. Step 1: Write the proportion equation
   309,016.62 : 463,452.30 = 174,139.47 : x
2. Step 2: Convert to fraction form
   309,016.62/463,452.30 = 174,139.47/x
3. Step 3: Cross multiply
   309,016.62x = 463,452.30 × 174,139.47
4. Step 4: Simplify right side
   309,016.62x = 80,705,337,892.28
5. Step 5: Solve for x
   x = 80,705,337,892.28/309,016.62
6. Step 6: Final answer
   x = 261,168.28