Finding the Fourth Proportional to 12,997, 17,935.88 and 7,408

Step by Step Solution

1. Step 1: Write the proportion equation
   12,997 : 17,935.88 = 7,408 : x
2. Step 2: Convert to fraction form
   12,997/17,935.88 = 7,408/x
3. Step 3: Cross multiply
   12,997x = 17,935.88 × 7,408
4. Step 4: Simplify right side
   12,997x = 132,868,999.04
5. Step 5: Solve for x
   x = 132,868,999.04/12,997
6. Step 6: Final answer
   x = 10,223.05