Finding the Fourth Proportional to 10,728.24, 16,093.20 and 3,711.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,728.24 : 16,093.20 = 3,711.60 : x
2. Step 2: Convert to fraction form
   10,728.24/16,093.20 = 3,711.60/x
3. Step 3: Cross multiply
   10,728.24x = 16,093.20 × 3,711.60
4. Step 4: Simplify right side
   10,728.24x = 59,731,521.12
5. Step 5: Solve for x
   x = 59,731,521.12/10,728.24
6. Step 6: Final answer
   x = 5,567.69