Finding the Fourth Proportional to 16,520.72, 24,772.56 and 6,657.34

Step by Step Solution

1. Step 1: Write the proportion equation
   16,520.72 : 24,772.56 = 6,657.34 : x
2. Step 2: Convert to fraction form
   16,520.72/24,772.56 = 6,657.34/x
3. Step 3: Cross multiply
   16,520.72x = 24,772.56 × 6,657.34
4. Step 4: Simplify right side
   16,520.72x = 164,919,354.59
5. Step 5: Solve for x
   x = 164,919,354.59/16,520.72
6. Step 6: Final answer
   x = 9,982.58