Finding the Fourth Proportional to 8,056.72, 12,080.68 and 5,424.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,056.72 : 12,080.68 = 5,424.12 : x
2. Step 2: Convert to fraction form
   8,056.72/12,080.68 = 5,424.12/x
3. Step 3: Cross multiply
   8,056.72x = 12,080.68 × 5,424.12
4. Step 4: Simplify right side
   8,056.72x = 65,527,058.00
5. Step 5: Solve for x
   x = 65,527,058.00/8,056.72
6. Step 6: Final answer
   x = 8,133.22