Finding the Fourth Proportional to 21,454.82, 29,605.92 and 12,022.10

Step by Step Solution

1. Step 1: Write the proportion equation
   21,454.82 : 29,605.92 = 12,022.10 : x
2. Step 2: Convert to fraction form
   21,454.82/29,605.92 = 12,022.10/x
3. Step 3: Cross multiply
   21,454.82x = 29,605.92 × 12,022.10
4. Step 4: Simplify right side
   21,454.82x = 355,925,330.83
5. Step 5: Solve for x
   x = 355,925,330.83/21,454.82
6. Step 6: Final answer
   x = 16,589.53