Finding the Fourth Proportional to 9,847.71, 13,589.43 and 5,371.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,847.71 : 13,589.43 = 5,371.38 : x
2. Step 2: Convert to fraction form
   9,847.71/13,589.43 = 5,371.38/x
3. Step 3: Cross multiply
   9,847.71x = 13,589.43 × 5,371.38
4. Step 4: Simplify right side
   9,847.71x = 72,993,992.51
5. Step 5: Solve for x
   x = 72,993,992.51/9,847.71
6. Step 6: Final answer
   x = 7,412.28