Finding the Fourth Proportional to 11,571, 15,981.02 and 7,838.52

Step by Step Solution

1. Step 1: Write the proportion equation
   11,571 : 15,981.02 = 7,838.52 : x
2. Step 2: Convert to fraction form
   11,571/15,981.02 = 7,838.52/x
3. Step 3: Cross multiply
   11,571x = 15,981.02 × 7,838.52
4. Step 4: Simplify right side
   11,571x = 125,267,544.89
5. Step 5: Solve for x
   x = 125,267,544.89/11,571
6. Step 6: Final answer
   x = 10,825.99