Finding the Fourth Proportional to 11,487.89, 17,231.25 and 3,167.98

Step by Step Solution

1. Step 1: Write the proportion equation
   11,487.89 : 17,231.25 = 3,167.98 : x
2. Step 2: Convert to fraction form
   11,487.89/17,231.25 = 3,167.98/x
3. Step 3: Cross multiply
   11,487.89x = 17,231.25 × 3,167.98
4. Step 4: Simplify right side
   11,487.89x = 54,588,255.38
5. Step 5: Solve for x
   x = 54,588,255.38/11,487.89
6. Step 6: Final answer
   x = 4,751.81