Finding the Fourth Proportional to 8,109.32, 12,160.90 and 2,842.83

Step by Step Solution

1. Step 1: Write the proportion equation
   8,109.32 : 12,160.90 = 2,842.83 : x
2. Step 2: Convert to fraction form
   8,109.32/12,160.90 = 2,842.83/x
3. Step 3: Cross multiply
   8,109.32x = 12,160.90 × 2,842.83
4. Step 4: Simplify right side
   8,109.32x = 34,571,374.90
5. Step 5: Solve for x
   x = 34,571,374.90/8,109.32
6. Step 6: Final answer
   x = 4,263.17