Finding the Fourth Proportional to 23,986.55, 33,101.47 and 13,231.18

Step by Step Solution

1. Step 1: Write the proportion equation
   23,986.55 : 33,101.47 = 13,231.18 : x
2. Step 2: Convert to fraction form
   23,986.55/33,101.47 = 13,231.18/x
3. Step 3: Cross multiply
   23,986.55x = 33,101.47 × 13,231.18
4. Step 4: Simplify right side
   23,986.55x = 437,971,507.83
5. Step 5: Solve for x
   x = 437,971,507.83/23,986.55
6. Step 6: Final answer
   x = 18,259.05