Finding the Fourth Proportional to 8,764.57, 12,095.09 and 5,620.75

Step by Step Solution

1. Step 1: Write the proportion equation
   8,764.57 : 12,095.09 = 5,620.75 : x
2. Step 2: Convert to fraction form
   8,764.57/12,095.09 = 5,620.75/x
3. Step 3: Cross multiply
   8,764.57x = 12,095.09 × 5,620.75
4. Step 4: Simplify right side
   8,764.57x = 67,983,477.12
5. Step 5: Solve for x
   x = 67,983,477.12/8,764.57
6. Step 6: Final answer
   x = 7,756.62