Finding the Fourth Proportional to 16,608.72, 22,921.92 and 9,533.76

Step by Step Solution

1. Step 1: Write the proportion equation
   16,608.72 : 22,921.92 = 9,533.76 : x
2. Step 2: Convert to fraction form
   16,608.72/22,921.92 = 9,533.76/x
3. Step 3: Cross multiply
   16,608.72x = 22,921.92 × 9,533.76
4. Step 4: Simplify right side
   16,608.72x = 218,532,084.02
5. Step 5: Solve for x
   x = 218,532,084.02/16,608.72
6. Step 6: Final answer
   x = 13,157.67