Finding the Fourth Proportional to 71,017.36, 106,452.23 and 28,879.34

Step by Step Solution

1. Step 1: Write the proportion equation
   71,017.36 : 106,452.23 = 28,879.34 : x
2. Step 2: Convert to fraction form
   71,017.36/106,452.23 = 28,879.34/x
3. Step 3: Cross multiply
   71,017.36x = 106,452.23 × 28,879.34
4. Step 4: Simplify right side
   71,017.36x = 3,074,269,467.27
5. Step 5: Solve for x
   x = 3,074,269,467.27/71,017.36
6. Step 6: Final answer
   x = 43,288.99