Finding the Fourth Proportional to 11,778.72, 17,667.99 and 3,013.62

Step by Step Solution

1. Step 1: Write the proportion equation
   11,778.72 : 17,667.99 = 3,013.62 : x
2. Step 2: Convert to fraction form
   11,778.72/17,667.99 = 3,013.62/x
3. Step 3: Cross multiply
   11,778.72x = 17,667.99 × 3,013.62
4. Step 4: Simplify right side
   11,778.72x = 53,244,608.02
5. Step 5: Solve for x
   x = 53,244,608.02/11,778.72
6. Step 6: Final answer
   x = 4,520.41