Finding the Fourth Proportional to 10,143.64, 13,997.94 and 5,544.23

Step by Step Solution

1. Step 1: Write the proportion equation
   10,143.64 : 13,997.94 = 5,544.23 : x
2. Step 2: Convert to fraction form
   10,143.64/13,997.94 = 5,544.23/x
3. Step 3: Cross multiply
   10,143.64x = 13,997.94 × 5,544.23
4. Step 4: Simplify right side
   10,143.64x = 77,607,798.89
5. Step 5: Solve for x
   x = 77,607,798.89/10,143.64
6. Step 6: Final answer
   x = 7,650.88