Finding the Fourth Proportional to 10,982.10, 16,462.35 and 5,436.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,982.10 : 16,462.35 = 5,436.30 : x
2. Step 2: Convert to fraction form
   10,982.10/16,462.35 = 5,436.30/x
3. Step 3: Cross multiply
   10,982.10x = 16,462.35 × 5,436.30
4. Step 4: Simplify right side
   10,982.10x = 89,494,273.31
5. Step 5: Solve for x
   x = 89,494,273.31/10,982.10
6. Step 6: Final answer
   x = 8,149.10