Finding the Fourth Proportional to 16,743.39, 25,119.72 and 13,615.67

Step by Step Solution

1. Step 1: Write the proportion equation
   16,743.39 : 25,119.72 = 13,615.67 : x
2. Step 2: Convert to fraction form
   16,743.39/25,119.72 = 13,615.67/x
3. Step 3: Cross multiply
   16,743.39x = 25,119.72 × 13,615.67
4. Step 4: Simplify right side
   16,743.39x = 342,021,692.41
5. Step 5: Solve for x
   x = 342,021,692.41/16,743.39
6. Step 6: Final answer
   x = 20,427.27