Finding the Fourth Proportional to 10,727.91, 16,089.53 and 5,457.33

Step by Step Solution

1. Step 1: Write the proportion equation
   10,727.91 : 16,089.53 = 5,457.33 : x
2. Step 2: Convert to fraction form
   10,727.91/16,089.53 = 5,457.33/x
3. Step 3: Cross multiply
   10,727.91x = 16,089.53 × 5,457.33
4. Step 4: Simplify right side
   10,727.91x = 87,805,847.47
5. Step 5: Solve for x
   x = 87,805,847.47/10,727.91
6. Step 6: Final answer
   x = 8,184.80