Finding the Fourth Proportional to 3,959.89, 5,910.59 and 3,492.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,959.89 : 5,910.59 = 3,492.96 : x
2. Step 2: Convert to fraction form
   3,959.89/5,910.59 = 3,492.96/x
3. Step 3: Cross multiply
   3,959.89x = 5,910.59 × 3,492.96
4. Step 4: Simplify right side
   3,959.89x = 20,645,454.45
5. Step 5: Solve for x
   x = 20,645,454.45/3,959.89
6. Step 6: Final answer
   x = 5,213.64