Finding the Fourth Proportional to 8,870.46, 12,241.58 and 4,891.55

Step by Step Solution

1. Step 1: Write the proportion equation
   8,870.46 : 12,241.58 = 4,891.55 : x
2. Step 2: Convert to fraction form
   8,870.46/12,241.58 = 4,891.55/x
3. Step 3: Cross multiply
   8,870.46x = 12,241.58 × 4,891.55
4. Step 4: Simplify right side
   8,870.46x = 59,880,214.98
5. Step 5: Solve for x
   x = 59,880,214.98/8,870.46
6. Step 6: Final answer
   x = 6,750.52