Finding the Fourth Proportional to 21,044.76, 31,568.82 and 7,004.28

Step by Step Solution

1. Step 1: Write the proportion equation
   21,044.76 : 31,568.82 = 7,004.28 : x
2. Step 2: Convert to fraction form
   21,044.76/31,568.82 = 7,004.28/x
3. Step 3: Cross multiply
   21,044.76x = 31,568.82 × 7,004.28
4. Step 4: Simplify right side
   21,044.76x = 221,116,854.55
5. Step 5: Solve for x
   x = 221,116,854.55/21,044.76
6. Step 6: Final answer
   x = 10,506.98