Finding the Fourth Proportional to 3,954.21, 5,900.61 and 3,429.33

Step by Step Solution

1. Step 1: Write the proportion equation
   3,954.21 : 5,900.61 = 3,429.33 : x
2. Step 2: Convert to fraction form
   3,954.21/5,900.61 = 3,429.33/x
3. Step 3: Cross multiply
   3,954.21x = 5,900.61 × 3,429.33
4. Step 4: Simplify right side
   3,954.21x = 20,235,138.89
5. Step 5: Solve for x
   x = 20,235,138.89/3,954.21
6. Step 6: Final answer
   x = 5,117.37