Finding the Fourth Proportional to 12,129, 16,738.80 and 7,352.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,129 : 16,738.80 = 7,352.24 : x
2. Step 2: Convert to fraction form
   12,129/16,738.80 = 7,352.24/x
3. Step 3: Cross multiply
   12,129x = 16,738.80 × 7,352.24
4. Step 4: Simplify right side
   12,129x = 123,067,674.91
5. Step 5: Solve for x
   x = 123,067,674.91/12,129
6. Step 6: Final answer
   x = 10,146.56