Finding the Fourth Proportional to 10,449.20, 14,418.72 and 5,972.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,449.20 : 14,418.72 = 5,972.48 : x
2. Step 2: Convert to fraction form
   10,449.20/14,418.72 = 5,972.48/x
3. Step 3: Cross multiply
   10,449.20x = 14,418.72 × 5,972.48
4. Step 4: Simplify right side
   10,449.20x = 86,115,516.83
5. Step 5: Solve for x
   x = 86,115,516.83/10,449.20
6. Step 6: Final answer
   x = 8,241.35