Finding the Fourth Proportional to 8,768.78, 13,153.98 and 2,528.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,768.78 : 13,153.98 = 2,528.72 : x
2. Step 2: Convert to fraction form
   8,768.78/13,153.98 = 2,528.72/x
3. Step 3: Cross multiply
   8,768.78x = 13,153.98 × 2,528.72
4. Step 4: Simplify right side
   8,768.78x = 33,262,732.31
5. Step 5: Solve for x
   x = 33,262,732.31/8,768.78
6. Step 6: Final answer
   x = 3,793.31