Finding the Fourth Proportional to 16,176.72, 22,320.18 and 9,100.56

Step by Step Solution

1. Step 1: Write the proportion equation
   16,176.72 : 22,320.18 = 9,100.56 : x
2. Step 2: Convert to fraction form
   16,176.72/22,320.18 = 9,100.56/x
3. Step 3: Cross multiply
   16,176.72x = 22,320.18 × 9,100.56
4. Step 4: Simplify right side
   16,176.72x = 203,126,137.30
5. Step 5: Solve for x
   x = 203,126,137.30/16,176.72
6. Step 6: Final answer
   x = 12,556.69