Finding the Fourth Proportional to 12,179.89, 16,796.58 and 7,400.62

Step by Step Solution

1. Step 1: Write the proportion equation
   12,179.89 : 16,796.58 = 7,400.62 : x
2. Step 2: Convert to fraction form
   12,179.89/16,796.58 = 7,400.62/x
3. Step 3: Cross multiply
   12,179.89x = 16,796.58 × 7,400.62
4. Step 4: Simplify right side
   12,179.89x = 124,305,021.90
5. Step 5: Solve for x
   x = 124,305,021.90/12,179.89
6. Step 6: Final answer
   x = 10,205.76