Finding the Fourth Proportional to 12,076.93, 18,113.46 and 3,309.81

Step by Step Solution

1. Step 1: Write the proportion equation
   12,076.93 : 18,113.46 = 3,309.81 : x
2. Step 2: Convert to fraction form
   12,076.93/18,113.46 = 3,309.81/x
3. Step 3: Cross multiply
   12,076.93x = 18,113.46 × 3,309.81
4. Step 4: Simplify right side
   12,076.93x = 59,952,111.04
5. Step 5: Solve for x
   x = 59,952,111.04/12,076.93
6. Step 6: Final answer
   x = 4,964.18