Finding the Fourth Proportional to 13,241.07, 19,861.59 and 3,380.35

Step by Step Solution

1. Step 1: Write the proportion equation
   13,241.07 : 19,861.59 = 3,380.35 : x
2. Step 2: Convert to fraction form
   13,241.07/19,861.59 = 3,380.35/x
3. Step 3: Cross multiply
   13,241.07x = 19,861.59 × 3,380.35
4. Step 4: Simplify right side
   13,241.07x = 67,139,108.85
5. Step 5: Solve for x
   x = 67,139,108.85/13,241.07
6. Step 6: Final answer
   x = 5,070.52