Finding the Fourth Proportional to 9,788.58, 14,680.17 and 3,211.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,788.58 : 14,680.17 = 3,211.38 : x
2. Step 2: Convert to fraction form
   9,788.58/14,680.17 = 3,211.38/x
3. Step 3: Cross multiply
   9,788.58x = 14,680.17 × 3,211.38
4. Step 4: Simplify right side
   9,788.58x = 47,143,604.33
5. Step 5: Solve for x
   x = 47,143,604.33/9,788.58
6. Step 6: Final answer
   x = 4,816.18