Finding the Fourth Proportional to 16,595.72, 22,901.64 and 9,521.68

Step by Step Solution

1. Step 1: Write the proportion equation
   16,595.72 : 22,901.64 = 9,521.68 : x
2. Step 2: Convert to fraction form
   16,595.72/22,901.64 = 9,521.68/x
3. Step 3: Cross multiply
   16,595.72x = 22,901.64 × 9,521.68
4. Step 4: Simplify right side
   16,595.72x = 218,062,087.56
5. Step 5: Solve for x
   x = 218,062,087.56/16,595.72
6. Step 6: Final answer
   x = 13,139.66