Finding the Fourth Proportional to 51,608.75, 71,216.82 and 28,947.58

Step by Step Solution

1. Step 1: Write the proportion equation
   51,608.75 : 71,216.82 = 28,947.58 : x
2. Step 2: Convert to fraction form
   51,608.75/71,216.82 = 28,947.58/x
3. Step 3: Cross multiply
   51,608.75x = 71,216.82 × 28,947.58
4. Step 4: Simplify right side
   51,608.75x = 2,061,554,416.25
5. Step 5: Solve for x
   x = 2,061,554,416.25/51,608.75
6. Step 6: Final answer
   x = 39,945.84