Finding the Fourth Proportional to 9,869.78, 14,807.25 and 2,850.37

Step by Step Solution

1. Step 1: Write the proportion equation
   9,869.78 : 14,807.25 = 2,850.37 : x
2. Step 2: Convert to fraction form
   9,869.78/14,807.25 = 2,850.37/x
3. Step 3: Cross multiply
   9,869.78x = 14,807.25 × 2,850.37
4. Step 4: Simplify right side
   9,869.78x = 42,206,104.16
5. Step 5: Solve for x
   x = 42,206,104.16/9,869.78
6. Step 6: Final answer
   x = 4,276.30