Finding the Fourth Proportional to 12,997.45, 17,936.55 and 7,029.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,997.45 : 17,936.55 = 7,029.10 : x
2. Step 2: Convert to fraction form
   12,997.45/17,936.55 = 7,029.10/x
3. Step 3: Cross multiply
   12,997.45x = 17,936.55 × 7,029.10
4. Step 4: Simplify right side
   12,997.45x = 126,077,803.61
5. Step 5: Solve for x
   x = 126,077,803.61/12,997.45
6. Step 6: Final answer
   x = 9,700.20