Finding the Fourth Proportional to 9,936.43, 14,904.79 and 2,540.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,936.43 : 14,904.79 = 2,540.72 : x
2. Step 2: Convert to fraction form
   9,936.43/14,904.79 = 2,540.72/x
3. Step 3: Cross multiply
   9,936.43x = 14,904.79 × 2,540.72
4. Step 4: Simplify right side
   9,936.43x = 37,868,898.05
5. Step 5: Solve for x
   x = 37,868,898.05/9,936.43
6. Step 6: Final answer
   x = 3,811.12