Finding the Fourth Proportional to 8,764.56, 13,148.82 and 3,217.86

Step by Step Solution

1. Step 1: Write the proportion equation
   8,764.56 : 13,148.82 = 3,217.86 : x
2. Step 2: Convert to fraction form
   8,764.56/13,148.82 = 3,217.86/x
3. Step 3: Cross multiply
   8,764.56x = 13,148.82 × 3,217.86
4. Step 4: Simplify right side
   8,764.56x = 42,311,061.93
5. Step 5: Solve for x
   x = 42,311,061.93/8,764.56
6. Step 6: Final answer
   x = 4,827.52