Finding the Fourth Proportional to 21,496.22, 29,664.78 and 12,064.78

Step by Step Solution

1. Step 1: Write the proportion equation
   21,496.22 : 29,664.78 = 12,064.78 : x
2. Step 2: Convert to fraction form
   21,496.22/29,664.78 = 12,064.78/x
3. Step 3: Cross multiply
   21,496.22x = 29,664.78 × 12,064.78
4. Step 4: Simplify right side
   21,496.22x = 357,899,104.15
5. Step 5: Solve for x
   x = 357,899,104.15/21,496.22
6. Step 6: Final answer
   x = 16,649.40