Finding the Fourth Proportional to 20,004.99, 30,006.72 and 5,012.09

Step by Step Solution

1. Step 1: Write the proportion equation
   20,004.99 : 30,006.72 = 5,012.09 : x
2. Step 2: Convert to fraction form
   20,004.99/30,006.72 = 5,012.09/x
3. Step 3: Cross multiply
   20,004.99x = 30,006.72 × 5,012.09
4. Step 4: Simplify right side
   20,004.99x = 150,396,231.21
5. Step 5: Solve for x
   x = 150,396,231.21/20,004.99
6. Step 6: Final answer
   x = 7,517.94