Finding the Fourth Proportional to 10,705.50, 16,057.71 and 3,309.39

Step by Step Solution

1. Step 1: Write the proportion equation
   10,705.50 : 16,057.71 = 3,309.39 : x
2. Step 2: Convert to fraction form
   10,705.50/16,057.71 = 3,309.39/x
3. Step 3: Cross multiply
   10,705.50x = 16,057.71 × 3,309.39
4. Step 4: Simplify right side
   10,705.50x = 53,141,224.90
5. Step 5: Solve for x
   x = 53,141,224.90/10,705.50
6. Step 6: Final answer
   x = 4,963.92