Finding the Fourth Proportional to 17,198, 23,733.24 and 10,128.77

Step by Step Solution

1. Step 1: Write the proportion equation
   17,198 : 23,733.24 = 10,128.77 : x
2. Step 2: Convert to fraction form
   17,198/23,733.24 = 10,128.77/x
3. Step 3: Cross multiply
   17,198x = 23,733.24 × 10,128.77
4. Step 4: Simplify right side
   17,198x = 240,388,529.31
5. Step 5: Solve for x
   x = 240,388,529.31/17,198
6. Step 6: Final answer
   x = 13,977.70