Finding the Fourth Proportional to 8,262.78, 12,392.76 and 2,715.98

Step by Step Solution

1. Step 1: Write the proportion equation
   8,262.78 : 12,392.76 = 2,715.98 : x
2. Step 2: Convert to fraction form
   8,262.78/12,392.76 = 2,715.98/x
3. Step 3: Cross multiply
   8,262.78x = 12,392.76 × 2,715.98
4. Step 4: Simplify right side
   8,262.78x = 33,658,488.30
5. Step 5: Solve for x
   x = 33,658,488.30/8,262.78
6. Step 6: Final answer
   x = 4,073.51