Finding the Fourth Proportional to 8,859.29, 12,225.39 and 4,880.30

Step by Step Solution

1. Step 1: Write the proportion equation
   8,859.29 : 12,225.39 = 4,880.30 : x
2. Step 2: Convert to fraction form
   8,859.29/12,225.39 = 4,880.30/x
3. Step 3: Cross multiply
   8,859.29x = 12,225.39 × 4,880.30
4. Step 4: Simplify right side
   8,859.29x = 59,663,570.82
5. Step 5: Solve for x
   x = 59,663,570.82/8,859.29
6. Step 6: Final answer
   x = 6,734.58