Finding the Fourth Proportional to 8,859.32, 12,225.72 and 4,880.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,859.32 : 12,225.72 = 4,880.42 : x
2. Step 2: Convert to fraction form
   8,859.32/12,225.72 = 4,880.42/x
3. Step 3: Cross multiply
   8,859.32x = 12,225.72 × 4,880.42
4. Step 4: Simplify right side
   8,859.32x = 59,666,648.40
5. Step 5: Solve for x
   x = 59,666,648.40/8,859.32
6. Step 6: Final answer
   x = 6,734.90