Finding the Fourth Proportional to 13,801.30, 20,708.03 and 10,708.18

Step by Step Solution

1. Step 1: Write the proportion equation
   13,801.30 : 20,708.03 = 10,708.18 : x
2. Step 2: Convert to fraction form
   13,801.30/20,708.03 = 10,708.18/x
3. Step 3: Cross multiply
   13,801.30x = 20,708.03 × 10,708.18
4. Step 4: Simplify right side
   13,801.30x = 221,745,287.69
5. Step 5: Solve for x
   x = 221,745,287.69/13,801.30
6. Step 6: Final answer
   x = 16,066.99