Finding the Fourth Proportional to 12,607.09, 17,397.61 and 7,018.09

Step by Step Solution

1. Step 1: Write the proportion equation
   12,607.09 : 17,397.61 = 7,018.09 : x
2. Step 2: Convert to fraction form
   12,607.09/17,397.61 = 7,018.09/x
3. Step 3: Cross multiply
   12,607.09x = 17,397.61 × 7,018.09
4. Step 4: Simplify right side
   12,607.09x = 122,097,992.76
5. Step 5: Solve for x
   x = 122,097,992.76/12,607.09
6. Step 6: Final answer
   x = 9,684.87