Finding the Fourth Proportional to 8,859.42, 12,225.45 and 4,880.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,859.42 : 12,225.45 = 4,880.31 : x
2. Step 2: Convert to fraction form
   8,859.42/12,225.45 = 4,880.31/x
3. Step 3: Cross multiply
   8,859.42x = 12,225.45 × 4,880.31
4. Step 4: Simplify right side
   8,859.42x = 59,663,985.89
5. Step 5: Solve for x
   x = 59,663,985.89/8,859.42
6. Step 6: Final answer
   x = 6,734.53