Finding the Fourth Proportional to 8,889.86, 12,267.42 and 4,910.73

Step by Step Solution

1. Step 1: Write the proportion equation
   8,889.86 : 12,267.42 = 4,910.73 : x
2. Step 2: Convert to fraction form
   8,889.86/12,267.42 = 4,910.73/x
3. Step 3: Cross multiply
   8,889.86x = 12,267.42 × 4,910.73
4. Step 4: Simplify right side
   8,889.86x = 60,241,987.42
5. Step 5: Solve for x
   x = 60,241,987.42/8,889.86
6. Step 6: Final answer
   x = 6,776.49