Finding the Fourth Proportional to 12,458.80, 17,194.74 and 7,153.51

Step by Step Solution

1. Step 1: Write the proportion equation
   12,458.80 : 17,194.74 = 7,153.51 : x
2. Step 2: Convert to fraction form
   12,458.80/17,194.74 = 7,153.51/x
3. Step 3: Cross multiply
   12,458.80x = 17,194.74 × 7,153.51
4. Step 4: Simplify right side
   12,458.80x = 123,002,744.54
5. Step 5: Solve for x
   x = 123,002,744.54/12,458.80
6. Step 6: Final answer
   x = 9,872.76