Finding the Fourth Proportional to 12,455.83, 17,187.69 and 7,674.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,455.83 : 17,187.69 = 7,674.94 : x
2. Step 2: Convert to fraction form
   12,455.83/17,187.69 = 7,674.94/x
3. Step 3: Cross multiply
   12,455.83x = 17,187.69 × 7,674.94
4. Step 4: Simplify right side
   12,455.83x = 131,914,489.49
5. Step 5: Solve for x
   x = 131,914,489.49/12,455.83
6. Step 6: Final answer
   x = 10,590.58