Finding the Fourth Proportional to 11,928.72, 17,893.98 and 3,163.38

Step by Step Solution

1. Step 1: Write the proportion equation
   11,928.72 : 17,893.98 = 3,163.38 : x
2. Step 2: Convert to fraction form
   11,928.72/17,893.98 = 3,163.38/x
3. Step 3: Cross multiply
   11,928.72x = 17,893.98 × 3,163.38
4. Step 4: Simplify right side
   11,928.72x = 56,605,458.45
5. Step 5: Solve for x
   x = 56,605,458.45/11,928.72
6. Step 6: Final answer
   x = 4,745.31