Finding the Fourth Proportional to 21,227.82, 31,841.78 and 5,645.44

Step by Step Solution

1. Step 1: Write the proportion equation
   21,227.82 : 31,841.78 = 5,645.44 : x
2. Step 2: Convert to fraction form
   21,227.82/31,841.78 = 5,645.44/x
3. Step 3: Cross multiply
   21,227.82x = 31,841.78 × 5,645.44
4. Step 4: Simplify right side
   21,227.82x = 179,760,870.06
5. Step 5: Solve for x
   x = 179,760,870.06/21,227.82
6. Step 6: Final answer
   x = 8,468.18