Finding the Fourth Proportional to 16,191, 24,287.31 and 15,338.88

Step by Step Solution

1. Step 1: Write the proportion equation
   16,191 : 24,287.31 = 15,338.88 : x
2. Step 2: Convert to fraction form
   16,191/24,287.31 = 15,338.88/x
3. Step 3: Cross multiply
   16,191x = 24,287.31 × 15,338.88
4. Step 4: Simplify right side
   16,191x = 372,540,133.61
5. Step 5: Solve for x
   x = 372,540,133.61/16,191
6. Step 6: Final answer
   x = 23,009.09