Finding the Fourth Proportional to 11,667.43, 17,497.55 and 3,345.21

Step by Step Solution

1. Step 1: Write the proportion equation
   11,667.43 : 17,497.55 = 3,345.21 : x
2. Step 2: Convert to fraction form
   11,667.43/17,497.55 = 3,345.21/x
3. Step 3: Cross multiply
   11,667.43x = 17,497.55 × 3,345.21
4. Step 4: Simplify right side
   11,667.43x = 58,532,979.24
5. Step 5: Solve for x
   x = 58,532,979.24/11,667.43
6. Step 6: Final answer
   x = 5,016.78