Finding the Fourth Proportional to 10,709.97, 16,066.76 and 3,689.70

Step by Step Solution

1. Step 1: Write the proportion equation
   10,709.97 : 16,066.76 = 3,689.70 : x
2. Step 2: Convert to fraction form
   10,709.97/16,066.76 = 3,689.70/x
3. Step 3: Cross multiply
   10,709.97x = 16,066.76 × 3,689.70
4. Step 4: Simplify right side
   10,709.97x = 59,281,505.92
5. Step 5: Solve for x
   x = 59,281,505.92/10,709.97
6. Step 6: Final answer
   x = 5,535.17