Finding the Fourth Proportional to 8,391.50, 12,586.55 and 2,844.75

Step by Step Solution

1. Step 1: Write the proportion equation
   8,391.50 : 12,586.55 = 2,844.75 : x
2. Step 2: Convert to fraction form
   8,391.50/12,586.55 = 2,844.75/x
3. Step 3: Cross multiply
   8,391.50x = 12,586.55 × 2,844.75
4. Step 4: Simplify right side
   8,391.50x = 35,805,573.89
5. Step 5: Solve for x
   x = 35,805,573.89/8,391.50
6. Step 6: Final answer
   x = 4,266.89