Finding the Fourth Proportional to 12,043.18, 18,064.72 and 3,278.07

Step by Step Solution

1. Step 1: Write the proportion equation
   12,043.18 : 18,064.72 = 3,278.07 : x
2. Step 2: Convert to fraction form
   12,043.18/18,064.72 = 3,278.07/x
3. Step 3: Cross multiply
   12,043.18x = 18,064.72 × 3,278.07
4. Step 4: Simplify right side
   12,043.18x = 59,217,400.30
5. Step 5: Solve for x
   x = 59,217,400.30/12,043.18
6. Step 6: Final answer
   x = 4,917.09