Finding the Fourth Proportional to 8,896.68, 12,276.89 and 4,917.55

Step by Step Solution

1. Step 1: Write the proportion equation
   8,896.68 : 12,276.89 = 4,917.55 : x
2. Step 2: Convert to fraction form
   8,896.68/12,276.89 = 4,917.55/x
3. Step 3: Cross multiply
   8,896.68x = 12,276.89 × 4,917.55
4. Step 4: Simplify right side
   8,896.68x = 60,372,195.83
5. Step 5: Solve for x
   x = 60,372,195.83/8,896.68
6. Step 6: Final answer
   x = 6,785.93