Finding the Fourth Proportional to 9,748.57, 13,452.71 and 5,499.74

Step by Step Solution

1. Step 1: Write the proportion equation
   9,748.57 : 13,452.71 = 5,499.74 : x
2. Step 2: Convert to fraction form
   9,748.57/13,452.71 = 5,499.74/x
3. Step 3: Cross multiply
   9,748.57x = 13,452.71 × 5,499.74
4. Step 4: Simplify right side
   9,748.57x = 73,986,413.43
5. Step 5: Solve for x
   x = 73,986,413.43/9,748.57
6. Step 6: Final answer
   x = 7,589.47