Finding the Fourth Proportional to 3,401.11, 5,071.73 and 3,131.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,401.11 : 5,071.73 = 3,131.83 : x
2. Step 2: Convert to fraction form
   3,401.11/5,071.73 = 3,131.83/x
3. Step 3: Cross multiply
   3,401.11x = 5,071.73 × 3,131.83
4. Step 4: Simplify right side
   3,401.11x = 15,883,796.17
5. Step 5: Solve for x
   x = 15,883,796.17/3,401.11
6. Step 6: Final answer
   x = 4,670.18