Finding the Fourth Proportional to 21,086.56, 31,626.24 and 7,044.64

Step by Step Solution

1. Step 1: Write the proportion equation
   21,086.56 : 31,626.24 = 7,044.64 : x
2. Step 2: Convert to fraction form
   21,086.56/31,626.24 = 7,044.64/x
3. Step 3: Cross multiply
   21,086.56x = 31,626.24 × 7,044.64
4. Step 4: Simplify right side
   21,086.56x = 222,795,475.35
5. Step 5: Solve for x
   x = 222,795,475.35/21,086.56
6. Step 6: Final answer
   x = 10,565.76