Finding the Fourth Proportional to 9,805.50, 14,708.25 and 2,880

Step by Step Solution

1. Step 1: Write the proportion equation
   9,805.50 : 14,708.25 = 2,880 : x
2. Step 2: Convert to fraction form
   9,805.50/14,708.25 = 2,880/x
3. Step 3: Cross multiply
   9,805.50x = 14,708.25 × 2,880
4. Step 4: Simplify right side
   9,805.50x = 42,359,760
5. Step 5: Solve for x
   x = 42,359,760/9,805.50
6. Step 6: Final answer
   x = 4,320