Finding the Fourth Proportional to 21,494.70, 29,662.20 and 12,062.25

Step by Step Solution

1. Step 1: Write the proportion equation
   21,494.70 : 29,662.20 = 12,062.25 : x
2. Step 2: Convert to fraction form
   21,494.70/29,662.20 = 12,062.25/x
3. Step 3: Cross multiply
   21,494.70x = 29,662.20 × 12,062.25
4. Step 4: Simplify right side
   21,494.70x = 357,792,871.95
5. Step 5: Solve for x
   x = 357,792,871.95/21,494.70
6. Step 6: Final answer
   x = 16,645.63