Finding the Fourth Proportional to 12,040.89, 18,054.63 and 3,718.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,040.89 : 18,054.63 = 3,718.56 : x
2. Step 2: Convert to fraction form
   12,040.89/18,054.63 = 3,718.56/x
3. Step 3: Cross multiply
   12,040.89x = 18,054.63 × 3,718.56
4. Step 4: Simplify right side
   12,040.89x = 67,137,224.93
5. Step 5: Solve for x
   x = 67,137,224.93/12,040.89
6. Step 6: Final answer
   x = 5,575.77