Finding the Fourth Proportional to 21,016.62, 31,522.10 and 6,227.10

Step by Step Solution

1. Step 1: Write the proportion equation
   21,016.62 : 31,522.10 = 6,227.10 : x
2. Step 2: Convert to fraction form
   21,016.62/31,522.10 = 6,227.10/x
3. Step 3: Cross multiply
   21,016.62x = 31,522.10 × 6,227.10
4. Step 4: Simplify right side
   21,016.62x = 196,291,237.77
5. Step 5: Solve for x
   x = 196,291,237.77/21,016.62
6. Step 6: Final answer
   x = 9,339.81