Finding the Fourth Proportional to 12,076.16, 18,113.72 and 3,311.92

Step by Step Solution

1. Step 1: Write the proportion equation
   12,076.16 : 18,113.72 = 3,311.92 : x
2. Step 2: Convert to fraction form
   12,076.16/18,113.72 = 3,311.92/x
3. Step 3: Cross multiply
   12,076.16x = 18,113.72 × 3,311.92
4. Step 4: Simplify right side
   12,076.16x = 59,991,191.54
5. Step 5: Solve for x
   x = 59,991,191.54/12,076.16
6. Step 6: Final answer
   x = 4,967.74