Finding the Fourth Proportional to 12,997.58, 17,936.60 and 7,029.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,997.58 : 17,936.60 = 7,029.25 : x
2. Step 2: Convert to fraction form
   12,997.58/17,936.60 = 7,029.25/x
3. Step 3: Cross multiply
   12,997.58x = 17,936.60 × 7,029.25
4. Step 4: Simplify right side
   12,997.58x = 126,080,765.56
5. Step 5: Solve for x
   x = 126,080,765.56/12,997.58
6. Step 6: Final answer
   x = 9,700.33