Finding the Fourth Proportional to 16,820.24, 23,212.04 and 9,650.45

Step by Step Solution

1. Step 1: Write the proportion equation
   16,820.24 : 23,212.04 = 9,650.45 : x
2. Step 2: Convert to fraction form
   16,820.24/23,212.04 = 9,650.45/x
3. Step 3: Cross multiply
   16,820.24x = 23,212.04 × 9,650.45
4. Step 4: Simplify right side
   16,820.24x = 224,006,641.20
5. Step 5: Solve for x
   x = 224,006,641.20/16,820.24
6. Step 6: Final answer
   x = 13,317.69