Finding the Fourth Proportional to 10,728.89, 16,090.27 and 3,707.07

Step by Step Solution

1. Step 1: Write the proportion equation
   10,728.89 : 16,090.27 = 3,707.07 : x
2. Step 2: Convert to fraction form
   10,728.89/16,090.27 = 3,707.07/x
3. Step 3: Cross multiply
   10,728.89x = 16,090.27 × 3,707.07
4. Step 4: Simplify right side
   10,728.89x = 59,647,747.94
5. Step 5: Solve for x
   x = 59,647,747.94/10,728.89
6. Step 6: Final answer
   x = 5,559.54