Finding the Fourth Proportional to 9,818.64, 14,734.18 and 3,578.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,818.64 : 14,734.18 = 3,578.04 : x
2. Step 2: Convert to fraction form
   9,818.64/14,734.18 = 3,578.04/x
3. Step 3: Cross multiply
   9,818.64x = 14,734.18 × 3,578.04
4. Step 4: Simplify right side
   9,818.64x = 52,719,485.41
5. Step 5: Solve for x
   x = 52,719,485.41/9,818.64
6. Step 6: Final answer
   x = 5,369.33