Finding the Fourth Proportional to 16,638.08, 22,961.76 and 9,566.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,638.08 : 22,961.76 = 9,566.72 : x
2. Step 2: Convert to fraction form
   16,638.08/22,961.76 = 9,566.72/x
3. Step 3: Cross multiply
   16,638.08x = 22,961.76 × 9,566.72
4. Step 4: Simplify right side
   16,638.08x = 219,668,728.63
5. Step 5: Solve for x
   x = 219,668,728.63/16,638.08
6. Step 6: Final answer
   x = 13,202.77