Finding the Fourth Proportional to 19,903.38, 29,855.37 and 5,111.97

Step by Step Solution

1. Step 1: Write the proportion equation
   19,903.38 : 29,855.37 = 5,111.97 : x
2. Step 2: Convert to fraction form
   19,903.38/29,855.37 = 5,111.97/x
3. Step 3: Cross multiply
   19,903.38x = 29,855.37 × 5,111.97
4. Step 4: Simplify right side
   19,903.38x = 152,619,755.78
5. Step 5: Solve for x
   x = 152,619,755.78/19,903.38
6. Step 6: Final answer
   x = 7,668.03