Finding the Fourth Proportional to 11,778.19, 17,667.89 and 3,013.18

Step by Step Solution

1. Step 1: Write the proportion equation
   11,778.19 : 17,667.89 = 3,013.18 : x
2. Step 2: Convert to fraction form
   11,778.19/17,667.89 = 3,013.18/x
3. Step 3: Cross multiply
   11,778.19x = 17,667.89 × 3,013.18
4. Step 4: Simplify right side
   11,778.19x = 53,236,532.79
5. Step 5: Solve for x
   x = 53,236,532.79/11,778.19
6. Step 6: Final answer
   x = 4,519.92