Finding the Fourth Proportional to 16,488.72, 24,721.56 and 8,158.56

Step by Step Solution

1. Step 1: Write the proportion equation
   16,488.72 : 24,721.56 = 8,158.56 : x
2. Step 2: Convert to fraction form
   16,488.72/24,721.56 = 8,158.56/x
3. Step 3: Cross multiply
   16,488.72x = 24,721.56 × 8,158.56
4. Step 4: Simplify right side
   16,488.72x = 201,692,330.55
5. Step 5: Solve for x
   x = 201,692,330.55/16,488.72
6. Step 6: Final answer
   x = 12,232.14