Finding the Fourth Proportional to 21,662.49, 32,494.89 and 6,872.57

Step by Step Solution

1. Step 1: Write the proportion equation
   21,662.49 : 32,494.89 = 6,872.57 : x
2. Step 2: Convert to fraction form
   21,662.49/32,494.89 = 6,872.57/x
3. Step 3: Cross multiply
   21,662.49x = 32,494.89 × 6,872.57
4. Step 4: Simplify right side
   21,662.49x = 223,323,391.32
5. Step 5: Solve for x
   x = 223,323,391.32/21,662.49
6. Step 6: Final answer
   x = 10,309.22