Finding the Fourth Proportional to 12,396.03, 17,101.58 and 7,918.62

Step by Step Solution

1. Step 1: Write the proportion equation
   12,396.03 : 17,101.58 = 7,918.62 : x
2. Step 2: Convert to fraction form
   12,396.03/17,101.58 = 7,918.62/x
3. Step 3: Cross multiply
   12,396.03x = 17,101.58 × 7,918.62
4. Step 4: Simplify right side
   12,396.03x = 135,420,873.83
5. Step 5: Solve for x
   x = 135,420,873.83/12,396.03
6. Step 6: Final answer
   x = 10,924.54