Finding the Fourth Proportional to 12,997.31, 17,936.32 and 7,029.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,997.31 : 17,936.32 = 7,029.02 : x
2. Step 2: Convert to fraction form
   12,997.31/17,936.32 = 7,029.02/x
3. Step 3: Cross multiply
   12,997.31x = 17,936.32 × 7,029.02
4. Step 4: Simplify right side
   12,997.31x = 126,074,644.75
5. Step 5: Solve for x
   x = 126,074,644.75/12,997.31
6. Step 6: Final answer
   x = 9,700.06