Finding the Fourth Proportional to 8,757.89, 12,099.06 and 5,740.18

Step by Step Solution

1. Step 1: Write the proportion equation
   8,757.89 : 12,099.06 = 5,740.18 : x
2. Step 2: Convert to fraction form
   8,757.89/12,099.06 = 5,740.18/x
3. Step 3: Cross multiply
   8,757.89x = 12,099.06 × 5,740.18
4. Step 4: Simplify right side
   8,757.89x = 69,450,782.23
5. Step 5: Solve for x
   x = 69,450,782.23/8,757.89
6. Step 6: Final answer
   x = 7,930.08