Finding the Fourth Proportional to 12,040.72, 18,056.42 and 4,141.74

Step by Step Solution

1. Step 1: Write the proportion equation
   12,040.72 : 18,056.42 = 4,141.74 : x
2. Step 2: Convert to fraction form
   12,040.72/18,056.42 = 4,141.74/x
3. Step 3: Cross multiply
   12,040.72x = 18,056.42 × 4,141.74
4. Step 4: Simplify right side
   12,040.72x = 74,784,996.97
5. Step 5: Solve for x
   x = 74,784,996.97/12,040.72
6. Step 6: Final answer
   x = 6,211.01