Finding the Fourth Proportional to 11,426.69, 17,142.60 and 4,031.21

Step by Step Solution

1. Step 1: Write the proportion equation
   11,426.69 : 17,142.60 = 4,031.21 : x
2. Step 2: Convert to fraction form
   11,426.69/17,142.60 = 4,031.21/x
3. Step 3: Cross multiply
   11,426.69x = 17,142.60 × 4,031.21
4. Step 4: Simplify right side
   11,426.69x = 69,105,314.68
5. Step 5: Solve for x
   x = 69,105,314.68/11,426.69
6. Step 6: Final answer
   x = 6,047.71