Finding the Fourth Proportional to 14,505.36, 21,756.42 and 5,144.60

Step by Step Solution

1. Step 1: Write the proportion equation
   14,505.36 : 21,756.42 = 5,144.60 : x
2. Step 2: Convert to fraction form
   14,505.36/21,756.42 = 5,144.60/x
3. Step 3: Cross multiply
   14,505.36x = 21,756.42 × 5,144.60
4. Step 4: Simplify right side
   14,505.36x = 111,928,078.33
5. Step 5: Solve for x
   x = 111,928,078.33/14,505.36
6. Step 6: Final answer
   x = 7,716.33