Finding the Fourth Proportional to 8,788.52, 12,124.55 and 6,426.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,788.52 : 12,124.55 = 6,426.56 : x
2. Step 2: Convert to fraction form
   8,788.52/12,124.55 = 6,426.56/x
3. Step 3: Cross multiply
   8,788.52x = 12,124.55 × 6,426.56
4. Step 4: Simplify right side
   8,788.52x = 77,919,194.43
5. Step 5: Solve for x
   x = 77,919,194.43/8,788.52
6. Step 6: Final answer
   x = 8,866.02