Finding the Fourth Proportional to 309,601.72, 464,513.24 and 188,269.12

Step by Step Solution

1. Step 1: Write the proportion equation
   309,601.72 : 464,513.24 = 188,269.12 : x
2. Step 2: Convert to fraction form
   309,601.72/464,513.24 = 188,269.12/x
3. Step 3: Cross multiply
   309,601.72x = 464,513.24 × 188,269.12
4. Step 4: Simplify right side
   309,601.72x = 87,453,498,923.15
5. Step 5: Solve for x
   x = 87,453,498,923.15/309,601.72
6. Step 6: Final answer
   x = 282,470.97