Finding the Fourth Proportional to 10,047.57, 13,866.34 and 5,571.73

Step by Step Solution

1. Step 1: Write the proportion equation
   10,047.57 : 13,866.34 = 5,571.73 : x
2. Step 2: Convert to fraction form
   10,047.57/13,866.34 = 5,571.73/x
3. Step 3: Cross multiply
   10,047.57x = 13,866.34 × 5,571.73
4. Step 4: Simplify right side
   10,047.57x = 77,259,502.57
5. Step 5: Solve for x
   x = 77,259,502.57/10,047.57
6. Step 6: Final answer
   x = 7,689.37