Finding the Fourth Proportional to 309,008.49, 463,720.50 and 109,328.10

Step by Step Solution

1. Step 1: Write the proportion equation
   309,008.49 : 463,720.50 = 109,328.10 : x
2. Step 2: Convert to fraction form
   309,008.49/463,720.50 = 109,328.10/x
3. Step 3: Cross multiply
   309,008.49x = 463,720.50 × 109,328.10
4. Step 4: Simplify right side
   309,008.49x = 50,697,681,196.05
5. Step 5: Solve for x
   x = 50,697,681,196.05/309,008.49
6. Step 6: Final answer
   x = 164,065.66