Finding the Fourth Proportional to 8,956.86, 12,360.42 and 4,923.78

Step by Step Solution

1. Step 1: Write the proportion equation
   8,956.86 : 12,360.42 = 4,923.78 : x
2. Step 2: Convert to fraction form
   8,956.86/12,360.42 = 4,923.78/x
3. Step 3: Cross multiply
   8,956.86x = 12,360.42 × 4,923.78
4. Step 4: Simplify right side
   8,956.86x = 60,859,988.79
5. Step 5: Solve for x
   x = 60,859,988.79/8,956.86
6. Step 6: Final answer
   x = 6,794.79