Finding the Fourth Proportional to 4,002.21, 6,003.41 and 3,181.05

Step by Step Solution

1. Step 1: Write the proportion equation
   4,002.21 : 6,003.41 = 3,181.05 : x
2. Step 2: Convert to fraction form
   4,002.21/6,003.41 = 3,181.05/x
3. Step 3: Cross multiply
   4,002.21x = 6,003.41 × 3,181.05
4. Step 4: Simplify right side
   4,002.21x = 19,097,131.48
5. Step 5: Solve for x
   x = 19,097,131.48/4,002.21
6. Step 6: Final answer
   x = 4,771.65