Finding the Fourth Proportional to 16,842.24, 23,227.20 and 13,066.56

Step by Step Solution

1. Step 1: Write the proportion equation
   16,842.24 : 23,227.20 = 13,066.56 : x
2. Step 2: Convert to fraction form
   16,842.24/23,227.20 = 13,066.56/x
3. Step 3: Cross multiply
   16,842.24x = 23,227.20 × 13,066.56
4. Step 4: Simplify right side
   16,842.24x = 303,499,602.43
5. Step 5: Solve for x
   x = 303,499,602.43/16,842.24
6. Step 6: Final answer
   x = 18,020.14