Finding the Fourth Proportional to 12,974.54, 17,904.38 and 7,936.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,974.54 : 17,904.38 = 7,936.88 : x
2. Step 2: Convert to fraction form
   12,974.54/17,904.38 = 7,936.88/x
3. Step 3: Cross multiply
   12,974.54x = 17,904.38 × 7,936.88
4. Step 4: Simplify right side
   12,974.54x = 142,104,915.53
5. Step 5: Solve for x
   x = 142,104,915.53/12,974.54
6. Step 6: Final answer
   x = 10,952.60