Finding the Fourth Proportional to 8,106, 12,152.04 and 2,840.28

Step by Step Solution

1. Step 1: Write the proportion equation
   8,106 : 12,152.04 = 2,840.28 : x
2. Step 2: Convert to fraction form
   8,106/12,152.04 = 2,840.28/x
3. Step 3: Cross multiply
   8,106x = 12,152.04 × 2,840.28
4. Step 4: Simplify right side
   8,106x = 34,515,196.17
5. Step 5: Solve for x
   x = 34,515,196.17/8,106
6. Step 6: Final answer
   x = 4,257.98