Finding the Fourth Proportional to 12,671.89, 17,486.51 and 7,006.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,671.89 : 17,486.51 = 7,006.31 : x
2. Step 2: Convert to fraction form
   12,671.89/17,486.51 = 7,006.31/x
3. Step 3: Cross multiply
   12,671.89x = 17,486.51 × 7,006.31
4. Step 4: Simplify right side
   12,671.89x = 122,515,909.88
5. Step 5: Solve for x
   x = 122,515,909.88/12,671.89
6. Step 6: Final answer
   x = 9,668.32