Finding the Fourth Proportional to 7,806.24, 10,760.16 and 7,162.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,806.24 : 10,760.16 = 7,162.72 : x
2. Step 2: Convert to fraction form
   7,806.24/10,760.16 = 7,162.72/x
3. Step 3: Cross multiply
   7,806.24x = 10,760.16 × 7,162.72
4. Step 4: Simplify right side
   7,806.24x = 77,072,013.24
5. Step 5: Solve for x
   x = 77,072,013.24/7,806.24
6. Step 6: Final answer
   x = 9,873.13