Finding the Fourth Proportional to 10,728.06, 16,102.56 and 5,808.21

Step by Step Solution

1. Step 1: Write the proportion equation
   10,728.06 : 16,102.56 = 5,808.21 : x
2. Step 2: Convert to fraction form
   10,728.06/16,102.56 = 5,808.21/x
3. Step 3: Cross multiply
   10,728.06x = 16,102.56 × 5,808.21
4. Step 4: Simplify right side
   10,728.06x = 93,527,050.02
5. Step 5: Solve for x
   x = 93,527,050.02/10,728.06
6. Step 6: Final answer
   x = 8,717.98