Finding the Fourth Proportional to 12,740, 17,573.58 and 8,016.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,740 : 17,573.58 = 8,016.08 : x
2. Step 2: Convert to fraction form
   12,740/17,573.58 = 8,016.08/x
3. Step 3: Cross multiply
   12,740x = 17,573.58 × 8,016.08
4. Step 4: Simplify right side
   12,740x = 140,871,223.17
5. Step 5: Solve for x
   x = 140,871,223.17/12,740
6. Step 6: Final answer
   x = 11,057.40