Finding the Fourth Proportional to 12,443.22, 17,159.45 and 8,196.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,443.22 : 17,159.45 = 8,196.80 : x
2. Step 2: Convert to fraction form
   12,443.22/17,159.45 = 8,196.80/x
3. Step 3: Cross multiply
   12,443.22x = 17,159.45 × 8,196.80
4. Step 4: Simplify right side
   12,443.22x = 140,652,452.98
5. Step 5: Solve for x
   x = 140,652,452.98/12,443.22
6. Step 6: Final answer
   x = 11,303.54