Finding the Fourth Proportional to 12,616.18, 17,410.41 and 7,238.84

Step by Step Solution

1. Step 1: Write the proportion equation
   12,616.18 : 17,410.41 = 7,238.84 : x
2. Step 2: Convert to fraction form
   12,616.18/17,410.41 = 7,238.84/x
3. Step 3: Cross multiply
   12,616.18x = 17,410.41 × 7,238.84
4. Step 4: Simplify right side
   12,616.18x = 126,031,172.32
5. Step 5: Solve for x
   x = 126,031,172.32/12,616.18
6. Step 6: Final answer
   x = 9,989.65