Finding the Fourth Proportional to 10,685.40, 16,035.12 and 3,759.84

Step by Step Solution

1. Step 1: Write the proportion equation
   10,685.40 : 16,035.12 = 3,759.84 : x
2. Step 2: Convert to fraction form
   10,685.40/16,035.12 = 3,759.84/x
3. Step 3: Cross multiply
   10,685.40x = 16,035.12 × 3,759.84
4. Step 4: Simplify right side
   10,685.40x = 60,289,485.58
5. Step 5: Solve for x
   x = 60,289,485.58/10,685.40
6. Step 6: Final answer
   x = 5,642.23