Finding the Fourth Proportional to 10,143.18, 13,998.24 and 5,667.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,143.18 : 13,998.24 = 5,667.48 : x
2. Step 2: Convert to fraction form
   10,143.18/13,998.24 = 5,667.48/x
3. Step 3: Cross multiply
   10,143.18x = 13,998.24 × 5,667.48
4. Step 4: Simplify right side
   10,143.18x = 79,334,745.24
5. Step 5: Solve for x
   x = 79,334,745.24/10,143.18
6. Step 6: Final answer
   x = 7,821.49