Finding the Fourth Proportional to 13,241.09, 19,861.62 and 3,380.38

Step by Step Solution

1. Step 1: Write the proportion equation
   13,241.09 : 19,861.62 = 3,380.38 : x
2. Step 2: Convert to fraction form
   13,241.09/19,861.62 = 3,380.38/x
3. Step 3: Cross multiply
   13,241.09x = 19,861.62 × 3,380.38
4. Step 4: Simplify right side
   13,241.09x = 67,139,760.69
5. Step 5: Solve for x
   x = 67,139,760.69/13,241.09
6. Step 6: Final answer
   x = 5,070.56