Finding the Fourth Proportional to 12,788.78, 17,634.41 and 8,756.27

Step by Step Solution

1. Step 1: Write the proportion equation
   12,788.78 : 17,634.41 = 8,756.27 : x
2. Step 2: Convert to fraction form
   12,788.78/17,634.41 = 8,756.27/x
3. Step 3: Cross multiply
   12,788.78x = 17,634.41 × 8,756.27
4. Step 4: Simplify right side
   12,788.78x = 154,411,655.25
5. Step 5: Solve for x
   x = 154,411,655.25/12,788.78
6. Step 6: Final answer
   x = 12,073.99