Finding the Fourth Proportional to 10,048.05, 13,865.99 and 5,571.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,048.05 : 13,865.99 = 5,571.72 : x
2. Step 2: Convert to fraction form
   10,048.05/13,865.99 = 5,571.72/x
3. Step 3: Cross multiply
   10,048.05x = 13,865.99 × 5,571.72
4. Step 4: Simplify right side
   10,048.05x = 77,257,385.94
5. Step 5: Solve for x
   x = 77,257,385.94/10,048.05
6. Step 6: Final answer
   x = 7,688.79