Finding the Fourth Proportional to 12,238, 16,889.88 and 7,270

Step by Step Solution

1. Step 1: Write the proportion equation
   12,238 : 16,889.88 = 7,270 : x
2. Step 2: Convert to fraction form
   12,238/16,889.88 = 7,270/x
3. Step 3: Cross multiply
   12,238x = 16,889.88 × 7,270
4. Step 4: Simplify right side
   12,238x = 122,789,427.60
5. Step 5: Solve for x
   x = 122,789,427.60/12,238
6. Step 6: Final answer
   x = 10,033.46