Finding the Fourth Proportional to 21,323.10, 29,425.46 and 12,371.42

Step by Step Solution

1. Step 1: Write the proportion equation
   21,323.10 : 29,425.46 = 12,371.42 : x
2. Step 2: Convert to fraction form
   21,323.10/29,425.46 = 12,371.42/x
3. Step 3: Cross multiply
   21,323.10x = 29,425.46 × 12,371.42
4. Step 4: Simplify right side
   21,323.10x = 364,034,724.35
5. Step 5: Solve for x
   x = 364,034,724.35/21,323.10
6. Step 6: Final answer
   x = 17,072.32