Finding the Fourth Proportional to 12,671.86, 17,487.17 and 7,082.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,671.86 : 17,487.17 = 7,082.86 : x
2. Step 2: Convert to fraction form
   12,671.86/17,487.17 = 7,082.86/x
3. Step 3: Cross multiply
   12,671.86x = 17,487.17 × 7,082.86
4. Step 4: Simplify right side
   12,671.86x = 123,859,196.96
5. Step 5: Solve for x
   x = 123,859,196.96/12,671.86
6. Step 6: Final answer
   x = 9,774.35