Finding the Fourth Proportional to 8,761.76, 12,091.24 and 5,617.94

Step by Step Solution

1. Step 1: Write the proportion equation
   8,761.76 : 12,091.24 = 5,617.94 : x
2. Step 2: Convert to fraction form
   8,761.76/12,091.24 = 5,617.94/x
3. Step 3: Cross multiply
   8,761.76x = 12,091.24 × 5,617.94
4. Step 4: Simplify right side
   8,761.76x = 67,927,860.85
5. Step 5: Solve for x
   x = 67,927,860.85/8,761.76
6. Step 6: Final answer
   x = 7,752.76