Finding the Fourth Proportional to 21,049.90, 31,571.56 and 7,010.10

Step by Step Solution

1. Step 1: Write the proportion equation
   21,049.90 : 31,571.56 = 7,010.10 : x
2. Step 2: Convert to fraction form
   21,049.90/31,571.56 = 7,010.10/x
3. Step 3: Cross multiply
   21,049.90x = 31,571.56 × 7,010.10
4. Step 4: Simplify right side
   21,049.90x = 221,319,792.76
5. Step 5: Solve for x
   x = 221,319,792.76/21,049.90
6. Step 6: Final answer
   x = 10,514.05