Finding the Fourth Proportional to 9,087.69, 13,621.71 and 3,821.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,087.69 : 13,621.71 = 3,821.48 : x
2. Step 2: Convert to fraction form
   9,087.69/13,621.71 = 3,821.48/x
3. Step 3: Cross multiply
   9,087.69x = 13,621.71 × 3,821.48
4. Step 4: Simplify right side
   9,087.69x = 52,055,024.22
5. Step 5: Solve for x
   x = 52,055,024.22/9,087.69
6. Step 6: Final answer
   x = 5,728.08