Finding the Fourth Proportional to 15,140.68, 22,713.59 and 5,144.36

Step by Step Solution

1. Step 1: Write the proportion equation
   15,140.68 : 22,713.59 = 5,144.36 : x
2. Step 2: Convert to fraction form
   15,140.68/22,713.59 = 5,144.36/x
3. Step 3: Cross multiply
   15,140.68x = 22,713.59 × 5,144.36
4. Step 4: Simplify right side
   15,140.68x = 116,846,783.15
5. Step 5: Solve for x
   x = 116,846,783.15/15,140.68
6. Step 6: Final answer
   x = 7,717.41