Finding the Fourth Proportional to 8,118.34, 12,168.29 and 3,435.43

Step by Step Solution

1. Step 1: Write the proportion equation
   8,118.34 : 12,168.29 = 3,435.43 : x
2. Step 2: Convert to fraction form
   8,118.34/12,168.29 = 3,435.43/x
3. Step 3: Cross multiply
   8,118.34x = 12,168.29 × 3,435.43
4. Step 4: Simplify right side
   8,118.34x = 41,803,308.51
5. Step 5: Solve for x
   x = 41,803,308.51/8,118.34
6. Step 6: Final answer
   x = 5,149.24