Finding the Fourth Proportional to 21,535.88, 29,719.22 and 12,104.46

Step by Step Solution

1. Step 1: Write the proportion equation
   21,535.88 : 29,719.22 = 12,104.46 : x
2. Step 2: Convert to fraction form
   21,535.88/29,719.22 = 12,104.46/x
3. Step 3: Cross multiply
   21,535.88x = 29,719.22 × 12,104.46
4. Step 4: Simplify right side
   21,535.88x = 359,735,049.20
5. Step 5: Solve for x
   x = 359,735,049.20/21,535.88
6. Step 6: Final answer
   x = 16,703.99