Finding the Fourth Proportional to 12,406.59, 18,610.01 and 3,641.67

Step by Step Solution

1. Step 1: Write the proportion equation
   12,406.59 : 18,610.01 = 3,641.67 : x
2. Step 2: Convert to fraction form
   12,406.59/18,610.01 = 3,641.67/x
3. Step 3: Cross multiply
   12,406.59x = 18,610.01 × 3,641.67
4. Step 4: Simplify right side
   12,406.59x = 67,771,515.12
5. Step 5: Solve for x
   x = 67,771,515.12/12,406.59
6. Step 6: Final answer
   x = 5,462.54