Finding the Fourth Proportional to 10,216.37, 15,321 and 3,641.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,216.37 : 15,321 = 3,641.60 : x
2. Step 2: Convert to fraction form
   10,216.37/15,321 = 3,641.60/x
3. Step 3: Cross multiply
   10,216.37x = 15,321 × 3,641.60
4. Step 4: Simplify right side
   10,216.37x = 55,792,953.60
5. Step 5: Solve for x
   x = 55,792,953.60/10,216.37
6. Step 6: Final answer
   x = 5,461.13