Finding the Fourth Proportional to 11,728.32, 16,186.69 and 7,193.71

Step by Step Solution

1. Step 1: Write the proportion equation
   11,728.32 : 16,186.69 = 7,193.71 : x
2. Step 2: Convert to fraction form
   11,728.32/16,186.69 = 7,193.71/x
3. Step 3: Cross multiply
   11,728.32x = 16,186.69 × 7,193.71
4. Step 4: Simplify right side
   11,728.32x = 116,442,353.72
5. Step 5: Solve for x
   x = 116,442,353.72/11,728.32
6. Step 6: Final answer
   x = 9,928.31