Finding the Fourth Proportional to 10,980.82, 16,450.53 and 5,427.73

Step by Step Solution

1. Step 1: Write the proportion equation
   10,980.82 : 16,450.53 = 5,427.73 : x
2. Step 2: Convert to fraction form
   10,980.82/16,450.53 = 5,427.73/x
3. Step 3: Cross multiply
   10,980.82x = 16,450.53 × 5,427.73
4. Step 4: Simplify right side
   10,980.82x = 89,289,035.20
5. Step 5: Solve for x
   x = 89,289,035.20/10,980.82
6. Step 6: Final answer
   x = 8,131.36