Finding the Fourth Proportional to 12,077.37, 18,113.63 and 3,311.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,077.37 : 18,113.63 = 3,311.15 : x
2. Step 2: Convert to fraction form
   12,077.37/18,113.63 = 3,311.15/x
3. Step 3: Cross multiply
   12,077.37x = 18,113.63 × 3,311.15
4. Step 4: Simplify right side
   12,077.37x = 59,976,838.85
5. Step 5: Solve for x
   x = 59,976,838.85/12,077.37
6. Step 6: Final answer
   x = 4,966.05