Finding the Fourth Proportional to 8,928.56, 13,395.46 and 3,997.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,928.56 : 13,395.46 = 3,997.10 : x
2. Step 2: Convert to fraction form
   8,928.56/13,395.46 = 3,997.10/x
3. Step 3: Cross multiply
   8,928.56x = 13,395.46 × 3,997.10
4. Step 4: Simplify right side
   8,928.56x = 53,543,016.66
5. Step 5: Solve for x
   x = 53,543,016.66/8,928.56
6. Step 6: Final answer
   x = 5,996.82