Finding the Fourth Proportional to 21,694.77, 29,939.49 and 12,004.34

Step by Step Solution

1. Step 1: Write the proportion equation
   21,694.77 : 29,939.49 = 12,004.34 : x
2. Step 2: Convert to fraction form
   21,694.77/29,939.49 = 12,004.34/x
3. Step 3: Cross multiply
   21,694.77x = 29,939.49 × 12,004.34
4. Step 4: Simplify right side
   21,694.77x = 359,403,667.69
5. Step 5: Solve for x
   x = 359,403,667.69/21,694.77
6. Step 6: Final answer
   x = 16,566.37