Finding the Fourth Proportional to 9,871.31, 13,622.33 and 5,839.58

Step by Step Solution

1. Step 1: Write the proportion equation
   9,871.31 : 13,622.33 = 5,839.58 : x
2. Step 2: Convert to fraction form
   9,871.31/13,622.33 = 5,839.58/x
3. Step 3: Cross multiply
   9,871.31x = 13,622.33 × 5,839.58
4. Step 4: Simplify right side
   9,871.31x = 79,548,734.48
5. Step 5: Solve for x
   x = 79,548,734.48/9,871.31
6. Step 6: Final answer
   x = 8,058.58