Finding the Fourth Proportional to 10,395.43, 14,345.38 and 5,679.71

Step by Step Solution

1. Step 1: Write the proportion equation
   10,395.43 : 14,345.38 = 5,679.71 : x
2. Step 2: Convert to fraction form
   10,395.43/14,345.38 = 5,679.71/x
3. Step 3: Cross multiply
   10,395.43x = 14,345.38 × 5,679.71
4. Step 4: Simplify right side
   10,395.43x = 81,477,512.31
5. Step 5: Solve for x
   x = 81,477,512.31/10,395.43
6. Step 6: Final answer
   x = 7,837.82