Finding the Fourth Proportional to 8,788.47, 12,124.61 and 5,425.44

Step by Step Solution

1. Step 1: Write the proportion equation
   8,788.47 : 12,124.61 = 5,425.44 : x
2. Step 2: Convert to fraction form
   8,788.47/12,124.61 = 5,425.44/x
3. Step 3: Cross multiply
   8,788.47x = 12,124.61 × 5,425.44
4. Step 4: Simplify right side
   8,788.47x = 65,781,291.83
5. Step 5: Solve for x
   x = 65,781,291.83/8,788.47
6. Step 6: Final answer
   x = 7,484.96