Finding the Fourth Proportional to 12,982.86, 17,915.58 and 7,317.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,982.86 : 17,915.58 = 7,317.86 : x
2. Step 2: Convert to fraction form
   12,982.86/17,915.58 = 7,317.86/x
3. Step 3: Cross multiply
   12,982.86x = 17,915.58 × 7,317.86
4. Step 4: Simplify right side
   12,982.86x = 131,103,616.68
5. Step 5: Solve for x
   x = 131,103,616.68/12,982.86
6. Step 6: Final answer
   x = 10,098.21