Finding the Fourth Proportional to 8,987.92, 12,401.16 and 5,843.60

Step by Step Solution

1. Step 1: Write the proportion equation
   8,987.92 : 12,401.16 = 5,843.60 : x
2. Step 2: Convert to fraction form
   8,987.92/12,401.16 = 5,843.60/x
3. Step 3: Cross multiply
   8,987.92x = 12,401.16 × 5,843.60
4. Step 4: Simplify right side
   8,987.92x = 72,467,418.58
5. Step 5: Solve for x
   x = 72,467,418.58/8,987.92
6. Step 6: Final answer
   x = 8,062.76