Finding the Fourth Proportional to 8,757.34, 12,087.15 and 5,773.70

Step by Step Solution

1. Step 1: Write the proportion equation
   8,757.34 : 12,087.15 = 5,773.70 : x
2. Step 2: Convert to fraction form
   8,757.34/12,087.15 = 5,773.70/x
3. Step 3: Cross multiply
   8,757.34x = 12,087.15 × 5,773.70
4. Step 4: Simplify right side
   8,757.34x = 69,787,577.96
5. Step 5: Solve for x
   x = 69,787,577.96/8,757.34
6. Step 6: Final answer
   x = 7,969.04