Finding the Fourth Proportional to 12,013.92, 17,961.72 and 10,185.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,013.92 : 17,961.72 = 10,185.48 : x
2. Step 2: Convert to fraction form
   12,013.92/17,961.72 = 10,185.48/x
3. Step 3: Cross multiply
   12,013.92x = 17,961.72 × 10,185.48
4. Step 4: Simplify right side
   12,013.92x = 182,948,739.83
5. Step 5: Solve for x
   x = 182,948,739.83/12,013.92
6. Step 6: Final answer
   x = 15,228.06