Finding the Fourth Proportional to 10,709.57, 16,061.27 and 3,689.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,709.57 : 16,061.27 = 3,689.30 : x
2. Step 2: Convert to fraction form
   10,709.57/16,061.27 = 3,689.30/x
3. Step 3: Cross multiply
   10,709.57x = 16,061.27 × 3,689.30
4. Step 4: Simplify right side
   10,709.57x = 59,254,843.41
5. Step 5: Solve for x
   x = 59,254,843.41/10,709.57
6. Step 6: Final answer
   x = 5,532.89