Finding the Fourth Proportional to 8,691.25, 12,003.83 and 5,891.89

Step by Step Solution

1. Step 1: Write the proportion equation
   8,691.25 : 12,003.83 = 5,891.89 : x
2. Step 2: Convert to fraction form
   8,691.25/12,003.83 = 5,891.89/x
3. Step 3: Cross multiply
   8,691.25x = 12,003.83 × 5,891.89
4. Step 4: Simplify right side
   8,691.25x = 70,725,245.94
5. Step 5: Solve for x
   x = 70,725,245.94/8,691.25
6. Step 6: Final answer
   x = 8,137.52