Finding the Fourth Proportional to 71,067.29, 106,578.25 and 28,947.29

Step by Step Solution

1. Step 1: Write the proportion equation
   71,067.29 : 106,578.25 = 28,947.29 : x
2. Step 2: Convert to fraction form
   71,067.29/106,578.25 = 28,947.29/x
3. Step 3: Cross multiply
   71,067.29x = 106,578.25 × 28,947.29
4. Step 4: Simplify right side
   71,067.29x = 3,085,150,905.18
5. Step 5: Solve for x
   x = 3,085,150,905.18/71,067.29
6. Step 6: Final answer
   x = 43,411.69