Finding the Fourth Proportional to 3,696.16, 5,511.52 and 3,630.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,696.16 : 5,511.52 = 3,630.56 : x
2. Step 2: Convert to fraction form
   3,696.16/5,511.52 = 3,630.56/x
3. Step 3: Cross multiply
   3,696.16x = 5,511.52 × 3,630.56
4. Step 4: Simplify right side
   3,696.16x = 20,009,904.05
5. Step 5: Solve for x
   x = 20,009,904.05/3,696.16
6. Step 6: Final answer
   x = 5,413.70