Finding the Fourth Proportional to 12,408.18, 18,615.74 and 5,017.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,408.18 : 18,615.74 = 5,017.83 : x
2. Step 2: Convert to fraction form
   12,408.18/18,615.74 = 5,017.83/x
3. Step 3: Cross multiply
   12,408.18x = 18,615.74 × 5,017.83
4. Step 4: Simplify right side
   12,408.18x = 93,410,525.57
5. Step 5: Solve for x
   x = 93,410,525.57/12,408.18
6. Step 6: Final answer
   x = 7,528.14