Finding the Fourth Proportional to 8,860.42, 12,226.83 and 4,881.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,860.42 : 12,226.83 = 4,881.31 : x
2. Step 2: Convert to fraction form
   8,860.42/12,226.83 = 4,881.31/x
3. Step 3: Cross multiply
   8,860.42x = 12,226.83 × 4,881.31
4. Step 4: Simplify right side
   8,860.42x = 59,682,947.55
5. Step 5: Solve for x
   x = 59,682,947.55/8,860.42
6. Step 6: Final answer
   x = 6,735.91