Finding the Fourth Proportional to 10,971.40, 16,456.73 and 4,395.82

Step by Step Solution

1. Step 1: Write the proportion equation
   10,971.40 : 16,456.73 = 4,395.82 : x
2. Step 2: Convert to fraction form
   10,971.40/16,456.73 = 4,395.82/x
3. Step 3: Cross multiply
   10,971.40x = 16,456.73 × 4,395.82
4. Step 4: Simplify right side
   10,971.40x = 72,340,822.87
5. Step 5: Solve for x
   x = 72,340,822.87/10,971.40
6. Step 6: Final answer
   x = 6,593.58