Finding the Fourth Proportional to 9,885.69, 14,830.89 and 3,222.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,885.69 : 14,830.89 = 3,222.15 : x
2. Step 2: Convert to fraction form
   9,885.69/14,830.89 = 3,222.15/x
3. Step 3: Cross multiply
   9,885.69x = 14,830.89 × 3,222.15
4. Step 4: Simplify right side
   9,885.69x = 47,787,352.21
5. Step 5: Solve for x
   x = 47,787,352.21/9,885.69
6. Step 6: Final answer
   x = 4,833.99