Finding the Fourth Proportional to 8,870.42, 12,241.25 and 4,891.67

Step by Step Solution

1. Step 1: Write the proportion equation
   8,870.42 : 12,241.25 = 4,891.67 : x
2. Step 2: Convert to fraction form
   8,870.42/12,241.25 = 4,891.67/x
3. Step 3: Cross multiply
   8,870.42x = 12,241.25 × 4,891.67
4. Step 4: Simplify right side
   8,870.42x = 59,880,069.72
5. Step 5: Solve for x
   x = 59,880,069.72/8,870.42
6. Step 6: Final answer
   x = 6,750.54