Finding the Fourth Proportional to 9,979.27, 13,772.03 and 5,503.01

Step by Step Solution

1. Step 1: Write the proportion equation
   9,979.27 : 13,772.03 = 5,503.01 : x
2. Step 2: Convert to fraction form
   9,979.27/13,772.03 = 5,503.01/x
3. Step 3: Cross multiply
   9,979.27x = 13,772.03 × 5,503.01
4. Step 4: Simplify right side
   9,979.27x = 75,787,522.44
5. Step 5: Solve for x
   x = 75,787,522.44/9,979.27
6. Step 6: Final answer
   x = 7,594.50