Finding the Fourth Proportional to 8,758.08, 12,078.24 and 5,772.96

Step by Step Solution

1. Step 1: Write the proportion equation
   8,758.08 : 12,078.24 = 5,772.96 : x
2. Step 2: Convert to fraction form
   8,758.08/12,078.24 = 5,772.96/x
3. Step 3: Cross multiply
   8,758.08x = 12,078.24 × 5,772.96
4. Step 4: Simplify right side
   8,758.08x = 69,727,196.39
5. Step 5: Solve for x
   x = 69,727,196.39/8,758.08
6. Step 6: Final answer
   x = 7,961.47