Finding the Fourth Proportional to 9,439.55, 13,023.33 and 5,853.21

Step by Step Solution

1. Step 1: Write the proportion equation
   9,439.55 : 13,023.33 = 5,853.21 : x
2. Step 2: Convert to fraction form
   9,439.55/13,023.33 = 5,853.21/x
3. Step 3: Cross multiply
   9,439.55x = 13,023.33 × 5,853.21
4. Step 4: Simplify right side
   9,439.55x = 76,228,304.32
5. Step 5: Solve for x
   x = 76,228,304.32/9,439.55
6. Step 6: Final answer
   x = 8,075.42