Finding the Fourth Proportional to 12,697.18, 17,522.16 and 7,108.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,697.18 : 17,522.16 = 7,108.18 : x
2. Step 2: Convert to fraction form
   12,697.18/17,522.16 = 7,108.18/x
3. Step 3: Cross multiply
   12,697.18x = 17,522.16 × 7,108.18
4. Step 4: Simplify right side
   12,697.18x = 124,550,667.27
5. Step 5: Solve for x
   x = 124,550,667.27/12,697.18
6. Step 6: Final answer
   x = 9,809.32