Finding the Fourth Proportional to 8,918.82, 12,309.27 and 5,141.27

Step by Step Solution

1. Step 1: Write the proportion equation
   8,918.82 : 12,309.27 = 5,141.27 : x
2. Step 2: Convert to fraction form
   8,918.82/12,309.27 = 5,141.27/x
3. Step 3: Cross multiply
   8,918.82x = 12,309.27 × 5,141.27
4. Step 4: Simplify right side
   8,918.82x = 63,285,219.03
5. Step 5: Solve for x
   x = 63,285,219.03/8,918.82
6. Step 6: Final answer
   x = 7,095.69