Finding the Fourth Proportional to 309,561.59, 464,342.49 and 204,355.96

Step by Step Solution

1. Step 1: Write the proportion equation
   309,561.59 : 464,342.49 = 204,355.96 : x
2. Step 2: Convert to fraction form
   309,561.59/464,342.49 = 204,355.96/x
3. Step 3: Cross multiply
   309,561.59x = 464,342.49 × 204,355.96
4. Step 4: Simplify right side
   309,561.59x = 94,891,154,151.88
5. Step 5: Solve for x
   x = 94,891,154,151.88/309,561.59
6. Step 6: Final answer
   x = 306,534.00