Finding the Fourth Proportional to 12,483.93, 18,587.24 and 12,309.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,483.93 : 18,587.24 = 12,309.56 : x
2. Step 2: Convert to fraction form
   12,483.93/18,587.24 = 12,309.56/x
3. Step 3: Cross multiply
   12,483.93x = 18,587.24 × 12,309.56
4. Step 4: Simplify right side
   12,483.93x = 228,800,683.85
5. Step 5: Solve for x
   x = 228,800,683.85/12,483.93
6. Step 6: Final answer
   x = 18,327.62