Finding the Fourth Proportional to 8,302.72, 12,455.55 and 2,755.48

Step by Step Solution

1. Step 1: Write the proportion equation
   8,302.72 : 12,455.55 = 2,755.48 : x
2. Step 2: Convert to fraction form
   8,302.72/12,455.55 = 2,755.48/x
3. Step 3: Cross multiply
   8,302.72x = 12,455.55 × 2,755.48
4. Step 4: Simplify right side
   8,302.72x = 34,321,018.91
5. Step 5: Solve for x
   x = 34,321,018.91/8,302.72
6. Step 6: Final answer
   x = 4,133.71