Finding the Fourth Proportional to 8,759.49, 12,086.04 and 4,981.78

Step by Step Solution

1. Step 1: Write the proportion equation
   8,759.49 : 12,086.04 = 4,981.78 : x
2. Step 2: Convert to fraction form
   8,759.49/12,086.04 = 4,981.78/x
3. Step 3: Cross multiply
   8,759.49x = 12,086.04 × 4,981.78
4. Step 4: Simplify right side
   8,759.49x = 60,209,992.35
5. Step 5: Solve for x
   x = 60,209,992.35/8,759.49
6. Step 6: Final answer
   x = 6,873.69