Finding the Fourth Proportional to 12,406.88, 18,610.41 and 3,641.92

Step by Step Solution

1. Step 1: Write the proportion equation
   12,406.88 : 18,610.41 = 3,641.92 : x
2. Step 2: Convert to fraction form
   12,406.88/18,610.41 = 3,641.92/x
3. Step 3: Cross multiply
   12,406.88x = 18,610.41 × 3,641.92
4. Step 4: Simplify right side
   12,406.88x = 67,777,624.39
5. Step 5: Solve for x
   x = 67,777,624.39/12,406.88
6. Step 6: Final answer
   x = 5,462.91