Finding the Fourth Proportional to 9,979.24, 13,771.50 and 5,503

Step by Step Solution

1. Step 1: Write the proportion equation
   9,979.24 : 13,771.50 = 5,503 : x
2. Step 2: Convert to fraction form
   9,979.24/13,771.50 = 5,503/x
3. Step 3: Cross multiply
   9,979.24x = 13,771.50 × 5,503
4. Step 4: Simplify right side
   9,979.24x = 75,784,564.50
5. Step 5: Solve for x
   x = 75,784,564.50/9,979.24
6. Step 6: Final answer
   x = 7,594.22