Finding the Fourth Proportional to 14,431.34, 21,629.31 and 8,196.59

Step by Step Solution

1. Step 1: Write the proportion equation
   14,431.34 : 21,629.31 = 8,196.59 : x
2. Step 2: Convert to fraction form
   14,431.34/21,629.31 = 8,196.59/x
3. Step 3: Cross multiply
   14,431.34x = 21,629.31 × 8,196.59
4. Step 4: Simplify right side
   14,431.34x = 177,286,589.75
5. Step 5: Solve for x
   x = 177,286,589.75/14,431.34
6. Step 6: Final answer
   x = 12,284.84