Finding the Fourth Proportional to 12,238.54, 18,329.34 and 11,901.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,238.54 : 18,329.34 = 11,901.82 : x
2. Step 2: Convert to fraction form
   12,238.54/18,329.34 = 11,901.82/x
3. Step 3: Cross multiply
   12,238.54x = 18,329.34 × 11,901.82
4. Step 4: Simplify right side
   12,238.54x = 218,152,459.58
5. Step 5: Solve for x
   x = 218,152,459.58/12,238.54
6. Step 6: Final answer
   x = 17,825.04