Finding the Fourth Proportional to 9,144.91, 13,741.98 and 8,874.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,144.91 : 13,741.98 = 8,874.28 : x
2. Step 2: Convert to fraction form
   9,144.91/13,741.98 = 8,874.28/x
3. Step 3: Cross multiply
   9,144.91x = 13,741.98 × 8,874.28
4. Step 4: Simplify right side
   9,144.91x = 121,950,178.27
5. Step 5: Solve for x
   x = 121,950,178.27/9,144.91
6. Step 6: Final answer
   x = 13,335.31