Finding the Fourth Proportional to 9,818.50, 14,731.69 and 3,578.97

Step by Step Solution

1. Step 1: Write the proportion equation
   9,818.50 : 14,731.69 = 3,578.97 : x
2. Step 2: Convert to fraction form
   9,818.50/14,731.69 = 3,578.97/x
3. Step 3: Cross multiply
   9,818.50x = 14,731.69 × 3,578.97
4. Step 4: Simplify right side
   9,818.50x = 52,724,276.56
5. Step 5: Solve for x
   x = 52,724,276.56/9,818.50
6. Step 6: Final answer
   x = 5,369.89