Finding the Fourth Proportional to 21,243.27, 29,321.82 and 12,296.82

Step by Step Solution

1. Step 1: Write the proportion equation
   21,243.27 : 29,321.82 = 12,296.82 : x
2. Step 2: Convert to fraction form
   21,243.27/29,321.82 = 12,296.82/x
3. Step 3: Cross multiply
   21,243.27x = 29,321.82 × 12,296.82
4. Step 4: Simplify right side
   21,243.27x = 360,565,142.61
5. Step 5: Solve for x
   x = 360,565,142.61/21,243.27
6. Step 6: Final answer
   x = 16,973.15