Finding the Fourth Proportional to 16,014.42, 23,986.53 and 13,209.48

Step by Step Solution

1. Step 1: Write the proportion equation
   16,014.42 : 23,986.53 = 13,209.48 : x
2. Step 2: Convert to fraction form
   16,014.42/23,986.53 = 13,209.48/x
3. Step 3: Cross multiply
   16,014.42x = 23,986.53 × 13,209.48
4. Step 4: Simplify right side
   16,014.42x = 316,849,588.30
5. Step 5: Solve for x
   x = 316,849,588.30/16,014.42
6. Step 6: Final answer
   x = 19,785.27