Finding the Fourth Proportional to 21,606.45, 32,396.72 and 8,443.14

Step by Step Solution

1. Step 1: Write the proportion equation
   21,606.45 : 32,396.72 = 8,443.14 : x
2. Step 2: Convert to fraction form
   21,606.45/32,396.72 = 8,443.14/x
3. Step 3: Cross multiply
   21,606.45x = 32,396.72 × 8,443.14
4. Step 4: Simplify right side
   21,606.45x = 273,530,000.29
5. Step 5: Solve for x
   x = 273,530,000.29/21,606.45
6. Step 6: Final answer
   x = 12,659.65