Finding the Fourth Proportional to 11,739.42, 17,609.88 and 3,419.46

Step by Step Solution

1. Step 1: Write the proportion equation
   11,739.42 : 17,609.88 = 3,419.46 : x
2. Step 2: Convert to fraction form
   11,739.42/17,609.88 = 3,419.46/x
3. Step 3: Cross multiply
   11,739.42x = 17,609.88 × 3,419.46
4. Step 4: Simplify right side
   11,739.42x = 60,216,280.26
5. Step 5: Solve for x
   x = 60,216,280.26/11,739.42
6. Step 6: Final answer
   x = 5,129.41