Finding the Fourth Proportional to 14,405.82, 21,593.89 and 5,518.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,405.82 : 21,593.89 = 5,518.72 : x
2. Step 2: Convert to fraction form
   14,405.82/21,593.89 = 5,518.72/x
3. Step 3: Cross multiply
   14,405.82x = 21,593.89 × 5,518.72
4. Step 4: Simplify right side
   14,405.82x = 119,170,632.62
5. Step 5: Solve for x
   x = 119,170,632.62/14,405.82
6. Step 6: Final answer
   x = 8,272.39