Finding the Fourth Proportional to 8,755.56, 12,099.78 and 7,783.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,755.56 : 12,099.78 = 7,783.56 : x
2. Step 2: Convert to fraction form
   8,755.56/12,099.78 = 7,783.56/x
3. Step 3: Cross multiply
   8,755.56x = 12,099.78 × 7,783.56
4. Step 4: Simplify right side
   8,755.56x = 94,179,363.62
5. Step 5: Solve for x
   x = 94,179,363.62/8,755.56
6. Step 6: Final answer
   x = 10,756.52