Finding the Fourth Proportional to 12,043.69, 18,065.76 and 3,278.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,043.69 : 18,065.76 = 3,278.83 : x
2. Step 2: Convert to fraction form
   12,043.69/18,065.76 = 3,278.83/x
3. Step 3: Cross multiply
   12,043.69x = 18,065.76 × 3,278.83
4. Step 4: Simplify right side
   12,043.69x = 59,234,541.50
5. Step 5: Solve for x
   x = 59,234,541.50/12,043.69
6. Step 6: Final answer
   x = 4,918.31