Finding the Fourth Proportional to 12,915.24, 17,818.02 and 10,217.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,915.24 : 17,818.02 = 10,217.94 : x
2. Step 2: Convert to fraction form
   12,915.24/17,818.02 = 10,217.94/x
3. Step 3: Cross multiply
   12,915.24x = 17,818.02 × 10,217.94
4. Step 4: Simplify right side
   12,915.24x = 182,063,459.28
5. Step 5: Solve for x
   x = 182,063,459.28/12,915.24
6. Step 6: Final answer
   x = 14,096.79