Finding the Fourth Proportional to 8,109.18, 12,158.37 and 2,914.38

Step by Step Solution

1. Step 1: Write the proportion equation
   8,109.18 : 12,158.37 = 2,914.38 : x
2. Step 2: Convert to fraction form
   8,109.18/12,158.37 = 2,914.38/x
3. Step 3: Cross multiply
   8,109.18x = 12,158.37 × 2,914.38
4. Step 4: Simplify right side
   8,109.18x = 35,434,110.36
5. Step 5: Solve for x
   x = 35,434,110.36/8,109.18
6. Step 6: Final answer
   x = 4,369.63