Finding the Fourth Proportional to 3,546.96, 5,312.23 and 3,423.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,546.96 : 5,312.23 = 3,423.94 : x
2. Step 2: Convert to fraction form
   3,546.96/5,312.23 = 3,423.94/x
3. Step 3: Cross multiply
   3,546.96x = 5,312.23 × 3,423.94
4. Step 4: Simplify right side
   3,546.96x = 18,188,743.51
5. Step 5: Solve for x
   x = 18,188,743.51/3,546.96
6. Step 6: Final answer
   x = 5,127.99