Finding the Fourth Proportional to 14,481.63, 21,724.23 and 5,119.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,481.63 : 21,724.23 = 5,119.72 : x
2. Step 2: Convert to fraction form
   14,481.63/21,724.23 = 5,119.72/x
3. Step 3: Cross multiply
   14,481.63x = 21,724.23 × 5,119.72
4. Step 4: Simplify right side
   14,481.63x = 111,221,974.82
5. Step 5: Solve for x
   x = 111,221,974.82/14,481.63
6. Step 6: Final answer
   x = 7,680.21