Finding the Fourth Proportional to 8,145.89, 12,233.88 and 4,879.07

Step by Step Solution

1. Step 1: Write the proportion equation
   8,145.89 : 12,233.88 = 4,879.07 : x
2. Step 2: Convert to fraction form
   8,145.89/12,233.88 = 4,879.07/x
3. Step 3: Cross multiply
   8,145.89x = 12,233.88 × 4,879.07
4. Step 4: Simplify right side
   8,145.89x = 59,689,895.72
5. Step 5: Solve for x
   x = 59,689,895.72/8,145.89
6. Step 6: Final answer
   x = 7,327.61