Finding the Fourth Proportional to 12,971.62, 17,898.24 and 7,667.29

Step by Step Solution

1. Step 1: Write the proportion equation
   12,971.62 : 17,898.24 = 7,667.29 : x
2. Step 2: Convert to fraction form
   12,971.62/17,898.24 = 7,667.29/x
3. Step 3: Cross multiply
   12,971.62x = 17,898.24 × 7,667.29
4. Step 4: Simplify right side
   12,971.62x = 137,230,996.57
5. Step 5: Solve for x
   x = 137,230,996.57/12,971.62
6. Step 6: Final answer
   x = 10,579.33