Finding the Fourth Proportional to 8,757.35, 12,084.54 and 4,980.25

Step by Step Solution

1. Step 1: Write the proportion equation
   8,757.35 : 12,084.54 = 4,980.25 : x
2. Step 2: Convert to fraction form
   8,757.35/12,084.54 = 4,980.25/x
3. Step 3: Cross multiply
   8,757.35x = 12,084.54 × 4,980.25
4. Step 4: Simplify right side
   8,757.35x = 60,183,969.91
5. Step 5: Solve for x
   x = 60,183,969.91/8,757.35
6. Step 6: Final answer
   x = 6,872.40