Finding the Fourth Proportional to 8,865.12, 12,233.90 and 4,886.15

Step by Step Solution

1. Step 1: Write the proportion equation
   8,865.12 : 12,233.90 = 4,886.15 : x
2. Step 2: Convert to fraction form
   8,865.12/12,233.90 = 4,886.15/x
3. Step 3: Cross multiply
   8,865.12x = 12,233.90 × 4,886.15
4. Step 4: Simplify right side
   8,865.12x = 59,776,584.88
5. Step 5: Solve for x
   x = 59,776,584.88/8,865.12
6. Step 6: Final answer
   x = 6,742.90