Finding the Fourth Proportional to 3,685.50, 5,052.82 and 3,618.87

Step by Step Solution

1. Step 1: Write the proportion equation
   3,685.50 : 5,052.82 = 3,618.87 : x
2. Step 2: Convert to fraction form
   3,685.50/5,052.82 = 3,618.87/x
3. Step 3: Cross multiply
   3,685.50x = 5,052.82 × 3,618.87
4. Step 4: Simplify right side
   3,685.50x = 18,285,498.71
5. Step 5: Solve for x
   x = 18,285,498.71/3,685.50
6. Step 6: Final answer
   x = 4,961.47