Finding the Fourth Proportional to 11,658.56, 16,091.68 and 9,001.92

Step by Step Solution

1. Step 1: Write the proportion equation
   11,658.56 : 16,091.68 = 9,001.92 : x
2. Step 2: Convert to fraction form
   11,658.56/16,091.68 = 9,001.92/x
3. Step 3: Cross multiply
   11,658.56x = 16,091.68 × 9,001.92
4. Step 4: Simplify right side
   11,658.56x = 144,856,016.03
5. Step 5: Solve for x
   x = 144,856,016.03/11,658.56
6. Step 6: Final answer
   x = 12,424.86