Finding the Fourth Proportional to 8,863.61, 12,231.52 and 4,830.35

Step by Step Solution

1. Step 1: Write the proportion equation
   8,863.61 : 12,231.52 = 4,830.35 : x
2. Step 2: Convert to fraction form
   8,863.61/12,231.52 = 4,830.35/x
3. Step 3: Cross multiply
   8,863.61x = 12,231.52 × 4,830.35
4. Step 4: Simplify right side
   8,863.61x = 59,082,522.63
5. Step 5: Solve for x
   x = 59,082,522.63/8,863.61
6. Step 6: Final answer
   x = 6,665.74