Finding the Fourth Proportional to 10,830, 16,245 and 2,622

Step by Step Solution

1. Step 1: Write the proportion equation
   10,830 : 16,245 = 2,622 : x
2. Step 2: Convert to fraction form
   10,830/16,245 = 2,622/x
3. Step 3: Cross multiply
   10,830x = 16,245 × 2,622
4. Step 4: Simplify right side
   10,830x = 42,594,390
5. Step 5: Solve for x
   x = 42,594,390/10,830
6. Step 6: Final answer
   x = 3,933