Finding the Fourth Proportional to 12,176.24, 16,804.50 and 7,144.70

Step by Step Solution

1. Step 1: Write the proportion equation
   12,176.24 : 16,804.50 = 7,144.70 : x
2. Step 2: Convert to fraction form
   12,176.24/16,804.50 = 7,144.70/x
3. Step 3: Cross multiply
   12,176.24x = 16,804.50 × 7,144.70
4. Step 4: Simplify right side
   12,176.24x = 120,063,111.15
5. Step 5: Solve for x
   x = 120,063,111.15/12,176.24
6. Step 6: Final answer
   x = 9,860.44