Finding the Fourth Proportional to 10,234.50, 15,356.61 and 3,309

Step by Step Solution

1. Step 1: Write the proportion equation
   10,234.50 : 15,356.61 = 3,309 : x
2. Step 2: Convert to fraction form
   10,234.50/15,356.61 = 3,309/x
3. Step 3: Cross multiply
   10,234.50x = 15,356.61 × 3,309
4. Step 4: Simplify right side
   10,234.50x = 50,815,022.49
5. Step 5: Solve for x
   x = 50,815,022.49/10,234.50
6. Step 6: Final answer
   x = 4,965.07