Finding the Fourth Proportional to 10,982.60, 16,471.92 and 5,434.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,982.60 : 16,471.92 = 5,434.16 : x
2. Step 2: Convert to fraction form
   10,982.60/16,471.92 = 5,434.16/x
3. Step 3: Cross multiply
   10,982.60x = 16,471.92 × 5,434.16
4. Step 4: Simplify right side
   10,982.60x = 89,511,048.79
5. Step 5: Solve for x
   x = 89,511,048.79/10,982.60
6. Step 6: Final answer
   x = 8,150.26