Finding the Fourth Proportional to 9,979.72, 14,965.24 and 2,862.39

Step by Step Solution

1. Step 1: Write the proportion equation
   9,979.72 : 14,965.24 = 2,862.39 : x
2. Step 2: Convert to fraction form
   9,979.72/14,965.24 = 2,862.39/x
3. Step 3: Cross multiply
   9,979.72x = 14,965.24 × 2,862.39
4. Step 4: Simplify right side
   9,979.72x = 42,836,353.32
5. Step 5: Solve for x
   x = 42,836,353.32/9,979.72
6. Step 6: Final answer
   x = 4,292.34