Finding the Fourth Proportional to 9,812.25, 14,727.62 and 3,578.29

Step by Step Solution

1. Step 1: Write the proportion equation
   9,812.25 : 14,727.62 = 3,578.29 : x
2. Step 2: Convert to fraction form
   9,812.25/14,727.62 = 3,578.29/x
3. Step 3: Cross multiply
   9,812.25x = 14,727.62 × 3,578.29
4. Step 4: Simplify right side
   9,812.25x = 52,699,695.37
5. Step 5: Solve for x
   x = 52,699,695.37/9,812.25
6. Step 6: Final answer
   x = 5,370.81