Finding the Fourth Proportional to 9,976.78, 14,964.72 and 2,956.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,976.78 : 14,964.72 = 2,956.48 : x
2. Step 2: Convert to fraction form
   9,976.78/14,964.72 = 2,956.48/x
3. Step 3: Cross multiply
   9,976.78x = 14,964.72 × 2,956.48
4. Step 4: Simplify right side
   9,976.78x = 44,242,895.39
5. Step 5: Solve for x
   x = 44,242,895.39/9,976.78
6. Step 6: Final answer
   x = 4,434.59