Finding the Fourth Proportional to 12,238.89, 16,889.97 and 7,203.37

Step by Step Solution

1. Step 1: Write the proportion equation
   12,238.89 : 16,889.97 = 7,203.37 : x
2. Step 2: Convert to fraction form
   12,238.89/16,889.97 = 7,203.37/x
3. Step 3: Cross multiply
   12,238.89x = 16,889.97 × 7,203.37
4. Step 4: Simplify right side
   12,238.89x = 121,664,667.18
5. Step 5: Solve for x
   x = 121,664,667.18/12,238.89
6. Step 6: Final answer
   x = 9,940.83