Finding the Fourth Proportional to 7,311.94, 10,090.65 and 4,168.06

Step by Step Solution

1. Step 1: Write the proportion equation
   7,311.94 : 10,090.65 = 4,168.06 : x
2. Step 2: Convert to fraction form
   7,311.94/10,090.65 = 4,168.06/x
3. Step 3: Cross multiply
   7,311.94x = 10,090.65 × 4,168.06
4. Step 4: Simplify right side
   7,311.94x = 42,058,434.64
5. Step 5: Solve for x
   x = 42,058,434.64/7,311.94
6. Step 6: Final answer
   x = 5,752.02