Finding the Fourth Proportional to 10,909.72, 16,364.56 and 3,982.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,909.72 : 16,364.56 = 3,982.60 : x
2. Step 2: Convert to fraction form
   10,909.72/16,364.56 = 3,982.60/x
3. Step 3: Cross multiply
   10,909.72x = 16,364.56 × 3,982.60
4. Step 4: Simplify right side
   10,909.72x = 65,173,496.66
5. Step 5: Solve for x
   x = 65,173,496.66/10,909.72
6. Step 6: Final answer
   x = 5,973.89