Finding the Fourth Proportional to 10,047.98, 13,866.30 and 5,571.65

Step by Step Solution

1. Step 1: Write the proportion equation
   10,047.98 : 13,866.30 = 5,571.65 : x
2. Step 2: Convert to fraction form
   10,047.98/13,866.30 = 5,571.65/x
3. Step 3: Cross multiply
   10,047.98x = 13,866.30 × 5,571.65
4. Step 4: Simplify right side
   10,047.98x = 77,258,101.06
5. Step 5: Solve for x
   x = 77,258,101.06/10,047.98
6. Step 6: Final answer
   x = 7,688.92