Finding the Fourth Proportional to 8,785.50, 12,123.92 and 4,956.86

Step by Step Solution

1. Step 1: Write the proportion equation
   8,785.50 : 12,123.92 = 4,956.86 : x
2. Step 2: Convert to fraction form
   8,785.50/12,123.92 = 4,956.86/x
3. Step 3: Cross multiply
   8,785.50x = 12,123.92 × 4,956.86
4. Step 4: Simplify right side
   8,785.50x = 60,096,574.09
5. Step 5: Solve for x
   x = 60,096,574.09/8,785.50
6. Step 6: Final answer
   x = 6,840.43