Finding the Fourth Proportional to 21,034.92, 29,022.78 and 12,080.37

Step by Step Solution

1. Step 1: Write the proportion equation
   21,034.92 : 29,022.78 = 12,080.37 : x
2. Step 2: Convert to fraction form
   21,034.92/29,022.78 = 12,080.37/x
3. Step 3: Cross multiply
   21,034.92x = 29,022.78 × 12,080.37
4. Step 4: Simplify right side
   21,034.92x = 350,605,920.83
5. Step 5: Solve for x
   x = 350,605,920.83/21,034.92
6. Step 6: Final answer
   x = 16,667.80