Finding the Fourth Proportional to 9,085.97, 13,631.54 and 3,818.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,085.97 : 13,631.54 = 3,818.25 : x
2. Step 2: Convert to fraction form
   9,085.97/13,631.54 = 3,818.25/x
3. Step 3: Cross multiply
   9,085.97x = 13,631.54 × 3,818.25
4. Step 4: Simplify right side
   9,085.97x = 52,048,608.51
5. Step 5: Solve for x
   x = 52,048,608.51/9,085.97
6. Step 6: Final answer
   x = 5,728.46