Finding the Fourth Proportional to 8,924.27, 12,315.57 and 4,945.43

Step by Step Solution

1. Step 1: Write the proportion equation
   8,924.27 : 12,315.57 = 4,945.43 : x
2. Step 2: Convert to fraction form
   8,924.27/12,315.57 = 4,945.43/x
3. Step 3: Cross multiply
   8,924.27x = 12,315.57 × 4,945.43
4. Step 4: Simplify right side
   8,924.27x = 60,905,789.35
5. Step 5: Solve for x
   x = 60,905,789.35/8,924.27
6. Step 6: Final answer
   x = 6,824.74