Finding the Fourth Proportional to 21,494.76, 29,662.56 and 12,063.12

Step by Step Solution

1. Step 1: Write the proportion equation
   21,494.76 : 29,662.56 = 12,063.12 : x
2. Step 2: Convert to fraction form
   21,494.76/29,662.56 = 12,063.12/x
3. Step 3: Cross multiply
   21,494.76x = 29,662.56 × 12,063.12
4. Step 4: Simplify right side
   21,494.76x = 357,823,020.79
5. Step 5: Solve for x
   x = 357,823,020.79/21,494.76
6. Step 6: Final answer
   x = 16,646.99