Finding the Fourth Proportional to 21,073.33, 29,082.03 and 12,120.82

Step by Step Solution

1. Step 1: Write the proportion equation
   21,073.33 : 29,082.03 = 12,120.82 : x
2. Step 2: Convert to fraction form
   21,073.33/29,082.03 = 12,120.82/x
3. Step 3: Cross multiply
   21,073.33x = 29,082.03 × 12,120.82
4. Step 4: Simplify right side
   21,073.33x = 352,498,050.86
5. Step 5: Solve for x
   x = 352,498,050.86/21,073.33
6. Step 6: Final answer
   x = 16,727.21