Finding the Fourth Proportional to 8,768.72, 13,152.36 and 2,612.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,768.72 : 13,152.36 = 2,612.72 : x
2. Step 2: Convert to fraction form
   8,768.72/13,152.36 = 2,612.72/x
3. Step 3: Cross multiply
   8,768.72x = 13,152.36 × 2,612.72
4. Step 4: Simplify right side
   8,768.72x = 34,363,434.02
5. Step 5: Solve for x
   x = 34,363,434.02/8,768.72
6. Step 6: Final answer
   x = 3,918.87