Finding the Fourth Proportional to 8,168.86, 11,273.86 and 4,812.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,168.86 : 11,273.86 = 4,812.72 : x
2. Step 2: Convert to fraction form
   8,168.86/11,273.86 = 4,812.72/x
3. Step 3: Cross multiply
   8,168.86x = 11,273.86 × 4,812.72
4. Step 4: Simplify right side
   8,168.86x = 54,257,931.50
5. Step 5: Solve for x
   x = 54,257,931.50/8,168.86
6. Step 6: Final answer
   x = 6,642.04