Finding the Fourth Proportional to 8,870.45, 12,241.07 and 4,891.92

Step by Step Solution

1. Step 1: Write the proportion equation
   8,870.45 : 12,241.07 = 4,891.92 : x
2. Step 2: Convert to fraction form
   8,870.45/12,241.07 = 4,891.92/x
3. Step 3: Cross multiply
   8,870.45x = 12,241.07 × 4,891.92
4. Step 4: Simplify right side
   8,870.45x = 59,882,310.69
5. Step 5: Solve for x
   x = 59,882,310.69/8,870.45
6. Step 6: Final answer
   x = 6,750.77