Finding the Fourth Proportional to 21,697.74, 29,942.06 and 12,266.52

Step by Step Solution

1. Step 1: Write the proportion equation
   21,697.74 : 29,942.06 = 12,266.52 : x
2. Step 2: Convert to fraction form
   21,697.74/29,942.06 = 12,266.52/x
3. Step 3: Cross multiply
   21,697.74x = 29,942.06 × 12,266.52
4. Step 4: Simplify right side
   21,697.74x = 367,284,877.83
5. Step 5: Solve for x
   x = 367,284,877.83/21,697.74
6. Step 6: Final answer
   x = 16,927.33