Finding the Fourth Proportional to 19,942.03, 29,910.73 and 5,149.79

Step by Step Solution

1. Step 1: Write the proportion equation
   19,942.03 : 29,910.73 = 5,149.79 : x
2. Step 2: Convert to fraction form
   19,942.03/29,910.73 = 5,149.79/x
3. Step 3: Cross multiply
   19,942.03x = 29,910.73 × 5,149.79
4. Step 4: Simplify right side
   19,942.03x = 154,033,978.25
5. Step 5: Solve for x
   x = 154,033,978.25/19,942.03
6. Step 6: Final answer
   x = 7,724.09