Finding the Fourth Proportional to 12,216.43, 18,327.35 and 5,100.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,216.43 : 18,327.35 = 5,100.76 : x
2. Step 2: Convert to fraction form
   12,216.43/18,327.35 = 5,100.76/x
3. Step 3: Cross multiply
   12,216.43x = 18,327.35 × 5,100.76
4. Step 4: Simplify right side
   12,216.43x = 93,483,413.79
5. Step 5: Solve for x
   x = 93,483,413.79/12,216.43
6. Step 6: Final answer
   x = 7,652.27