Finding the Fourth Proportional to 17,455, 24,078.54 and 12,140.58

Step by Step Solution

1. Step 1: Write the proportion equation
   17,455 : 24,078.54 = 12,140.58 : x
2. Step 2: Convert to fraction form
   17,455/24,078.54 = 12,140.58/x
3. Step 3: Cross multiply
   17,455x = 24,078.54 × 12,140.58
4. Step 4: Simplify right side
   17,455x = 292,327,441.15
5. Step 5: Solve for x
   x = 292,327,441.15/17,455
6. Step 6: Final answer
   x = 16,747.49