Finding the Fourth Proportional to 10,857.12, 16,272.72 and 5,928

Step by Step Solution

1. Step 1: Write the proportion equation
   10,857.12 : 16,272.72 = 5,928 : x
2. Step 2: Convert to fraction form
   10,857.12/16,272.72 = 5,928/x
3. Step 3: Cross multiply
   10,857.12x = 16,272.72 × 5,928
4. Step 4: Simplify right side
   10,857.12x = 96,464,684.16
5. Step 5: Solve for x
   x = 96,464,684.16/10,857.12
6. Step 6: Final answer
   x = 8,884.92