Finding the Fourth Proportional to 17,681.82, 24,391.50 and 13,425.83

Step by Step Solution

1. Step 1: Write the proportion equation
   17,681.82 : 24,391.50 = 13,425.83 : x
2. Step 2: Convert to fraction form
   17,681.82/24,391.50 = 13,425.83/x
3. Step 3: Cross multiply
   17,681.82x = 24,391.50 × 13,425.83
4. Step 4: Simplify right side
   17,681.82x = 327,476,096.29
5. Step 5: Solve for x
   x = 327,476,096.29/17,681.82
6. Step 6: Final answer
   x = 18,520.50