Finding the Fourth Proportional to 12,971.91, 17,901.68 and 7,671.27

Step by Step Solution

1. Step 1: Write the proportion equation
   12,971.91 : 17,901.68 = 7,671.27 : x
2. Step 2: Convert to fraction form
   12,971.91/17,901.68 = 7,671.27/x
3. Step 3: Cross multiply
   12,971.91x = 17,901.68 × 7,671.27
4. Step 4: Simplify right side
   12,971.91x = 137,328,582.38
5. Step 5: Solve for x
   x = 137,328,582.38/12,971.91
6. Step 6: Final answer
   x = 10,586.61