Finding the Fourth Proportional to 3,705.52, 5,529.70 and 3,316.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,705.52 : 5,529.70 = 3,316.72 : x
2. Step 2: Convert to fraction form
   3,705.52/5,529.70 = 3,316.72/x
3. Step 3: Cross multiply
   3,705.52x = 5,529.70 × 3,316.72
4. Step 4: Simplify right side
   3,705.52x = 18,340,466.58
5. Step 5: Solve for x
   x = 18,340,466.58/3,705.52
6. Step 6: Final answer
   x = 4,949.50