Finding the Fourth Proportional to 10,144.27, 13,998.18 and 5,667.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,144.27 : 13,998.18 = 5,667.40 : x
2. Step 2: Convert to fraction form
   10,144.27/13,998.18 = 5,667.40/x
3. Step 3: Cross multiply
   10,144.27x = 13,998.18 × 5,667.40
4. Step 4: Simplify right side
   10,144.27x = 79,333,324.08
5. Step 5: Solve for x
   x = 79,333,324.08/10,144.27
6. Step 6: Final answer
   x = 7,820.51