Finding the Fourth Proportional to 8,760.87, 12,090.27 and 4,984.59

Step by Step Solution

1. Step 1: Write the proportion equation
   8,760.87 : 12,090.27 = 4,984.59 : x
2. Step 2: Convert to fraction form
   8,760.87/12,090.27 = 4,984.59/x
3. Step 3: Cross multiply
   8,760.87x = 12,090.27 × 4,984.59
4. Step 4: Simplify right side
   8,760.87x = 60,265,038.94
5. Step 5: Solve for x
   x = 60,265,038.94/8,760.87
6. Step 6: Final answer
   x = 6,878.89