Finding the Fourth Proportional to 9,975.72, 13,766.23 and 5,499.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,975.72 : 13,766.23 = 5,499.49 : x
2. Step 2: Convert to fraction form
   9,975.72/13,766.23 = 5,499.49/x
3. Step 3: Cross multiply
   9,975.72x = 13,766.23 × 5,499.49
4. Step 4: Simplify right side
   9,975.72x = 75,707,244.22
5. Step 5: Solve for x
   x = 75,707,244.22/9,975.72
6. Step 6: Final answer
   x = 7,589.15