Finding the Fourth Proportional to 12,982.14, 17,915.87 and 7,317.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,982.14 : 17,915.87 = 7,317.12 : x
2. Step 2: Convert to fraction form
   12,982.14/17,915.87 = 7,317.12/x
3. Step 3: Cross multiply
   12,982.14x = 17,915.87 × 7,317.12
4. Step 4: Simplify right side
   12,982.14x = 131,092,656.17
5. Step 5: Solve for x
   x = 131,092,656.17/12,982.14
6. Step 6: Final answer
   x = 10,097.92