Finding the Fourth Proportional to 21,146.46, 31,676.58 and 10,019.41

Step by Step Solution

1. Step 1: Write the proportion equation
   21,146.46 : 31,676.58 = 10,019.41 : x
2. Step 2: Convert to fraction form
   21,146.46/31,676.58 = 10,019.41/x
3. Step 3: Cross multiply
   21,146.46x = 31,676.58 × 10,019.41
4. Step 4: Simplify right side
   21,146.46x = 317,380,563.23
5. Step 5: Solve for x
   x = 317,380,563.23/21,146.46
6. Step 6: Final answer
   x = 15,008.69