Finding the Fourth Proportional to 10,728.69, 16,088.71 and 3,707.61

Step by Step Solution

1. Step 1: Write the proportion equation
   10,728.69 : 16,088.71 = 3,707.61 : x
2. Step 2: Convert to fraction form
   10,728.69/16,088.71 = 3,707.61/x
3. Step 3: Cross multiply
   10,728.69x = 16,088.71 × 3,707.61
4. Step 4: Simplify right side
   10,728.69x = 59,650,662.08
5. Step 5: Solve for x
   x = 59,650,662.08/10,728.69
6. Step 6: Final answer
   x = 5,559.92