Finding the Fourth Proportional to 8,084.89, 12,127.68 and 2,820.43

Step by Step Solution

1. Step 1: Write the proportion equation
   8,084.89 : 12,127.68 = 2,820.43 : x
2. Step 2: Convert to fraction form
   8,084.89/12,127.68 = 2,820.43/x
3. Step 3: Cross multiply
   8,084.89x = 12,127.68 × 2,820.43
4. Step 4: Simplify right side
   8,084.89x = 34,205,315.62
5. Step 5: Solve for x
   x = 34,205,315.62/8,084.89
6. Step 6: Final answer
   x = 4,230.77