Finding the Fourth Proportional to 10,395, 14,345.10 and 5,679.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,395 : 14,345.10 = 5,679.28 : x
2. Step 2: Convert to fraction form
   10,395/14,345.10 = 5,679.28/x
3. Step 3: Cross multiply
   10,395x = 14,345.10 × 5,679.28
4. Step 4: Simplify right side
   10,395x = 81,469,857.46
5. Step 5: Solve for x
   x = 81,469,857.46/10,395
6. Step 6: Final answer
   x = 7,837.41