Finding the Fourth Proportional to 5,721.30, 8,571.86 and 5,010.58

Step by Step Solution

1. Step 1: Write the proportion equation
   5,721.30 : 8,571.86 = 5,010.58 : x
2. Step 2: Convert to fraction form
   5,721.30/8,571.86 = 5,010.58/x
3. Step 3: Cross multiply
   5,721.30x = 8,571.86 × 5,010.58
4. Step 4: Simplify right side
   5,721.30x = 42,950,034.97
5. Step 5: Solve for x
   x = 42,950,034.97/5,721.30
6. Step 6: Final answer
   x = 7,507.04