Finding the Fourth Proportional to 7,272.72, 10,912.68 and 5,427.54

Step by Step Solution

1. Step 1: Write the proportion equation
   7,272.72 : 10,912.68 = 5,427.54 : x
2. Step 2: Convert to fraction form
   7,272.72/10,912.68 = 5,427.54/x
3. Step 3: Cross multiply
   7,272.72x = 10,912.68 × 5,427.54
4. Step 4: Simplify right side
   7,272.72x = 59,229,007.21
5. Step 5: Solve for x
   x = 59,229,007.21/7,272.72
6. Step 6: Final answer
   x = 8,144.00