Finding the Fourth Proportional to 21,496.76, 29,666.06 and 12,066.04

Step by Step Solution

1. Step 1: Write the proportion equation
   21,496.76 : 29,666.06 = 12,066.04 : x
2. Step 2: Convert to fraction form
   21,496.76/29,666.06 = 12,066.04/x
3. Step 3: Cross multiply
   21,496.76x = 29,666.06 × 12,066.04
4. Step 4: Simplify right side
   21,496.76x = 357,951,866.60
5. Step 5: Solve for x
   x = 357,951,866.60/21,496.76
6. Step 6: Final answer
   x = 16,651.43