Finding the Fourth Proportional to 12,101.82, 18,144.93 and 5,086.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,101.82 : 18,144.93 = 5,086.38 : x
2. Step 2: Convert to fraction form
   12,101.82/18,144.93 = 5,086.38/x
3. Step 3: Cross multiply
   12,101.82x = 18,144.93 × 5,086.38
4. Step 4: Simplify right side
   12,101.82x = 92,292,009.05
5. Step 5: Solve for x
   x = 92,292,009.05/12,101.82
6. Step 6: Final answer
   x = 7,626.29