Finding the Fourth Proportional to 9,324.88, 13,974.72 and 5,164.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,324.88 : 13,974.72 = 5,164.72 : x
2. Step 2: Convert to fraction form
   9,324.88/13,974.72 = 5,164.72/x
3. Step 3: Cross multiply
   9,324.88x = 13,974.72 × 5,164.72
4. Step 4: Simplify right side
   9,324.88x = 72,175,515.88
5. Step 5: Solve for x
   x = 72,175,515.88/9,324.88
6. Step 6: Final answer
   x = 7,740.10