Finding the Fourth Proportional to 8,863.34, 12,152.16 and 8,705.39

Step by Step Solution

1. Step 1: Write the proportion equation
   8,863.34 : 12,152.16 = 8,705.39 : x
2. Step 2: Convert to fraction form
   8,863.34/12,152.16 = 8,705.39/x
3. Step 3: Cross multiply
   8,863.34x = 12,152.16 × 8,705.39
4. Step 4: Simplify right side
   8,863.34x = 105,789,231.38
5. Step 5: Solve for x
   x = 105,789,231.38/8,863.34
6. Step 6: Final answer
   x = 11,935.60