Finding the Fourth Proportional to 9,847.82, 13,589.92 and 5,371.55

Step by Step Solution

1. Step 1: Write the proportion equation
   9,847.82 : 13,589.92 = 5,371.55 : x
2. Step 2: Convert to fraction form
   9,847.82/13,589.92 = 5,371.55/x
3. Step 3: Cross multiply
   9,847.82x = 13,589.92 × 5,371.55
4. Step 4: Simplify right side
   9,847.82x = 72,998,934.78
5. Step 5: Solve for x
   x = 72,998,934.78/9,847.82
6. Step 6: Final answer
   x = 7,412.70