Finding the Fourth Proportional to 8,755.38, 12,082.42 and 5,611.57

Step by Step Solution

1. Step 1: Write the proportion equation
   8,755.38 : 12,082.42 = 5,611.57 : x
2. Step 2: Convert to fraction form
   8,755.38/12,082.42 = 5,611.57/x
3. Step 3: Cross multiply
   8,755.38x = 12,082.42 × 5,611.57
4. Step 4: Simplify right side
   8,755.38x = 67,801,285.19
5. Step 5: Solve for x
   x = 67,801,285.19/8,755.38
6. Step 6: Final answer
   x = 7,743.96