Finding the Fourth Proportional to 21,439.27, 29,597.57 and 16,146.73

Step by Step Solution

1. Step 1: Write the proportion equation
   21,439.27 : 29,597.57 = 16,146.73 : x
2. Step 2: Convert to fraction form
   21,439.27/29,597.57 = 16,146.73/x
3. Step 3: Cross multiply
   21,439.27x = 29,597.57 × 16,146.73
4. Step 4: Simplify right side
   21,439.27x = 477,903,971.45
5. Step 5: Solve for x
   x = 477,903,971.45/21,439.27
6. Step 6: Final answer
   x = 22,291.06