Finding the Fourth Proportional to 51,789.75, 71,473.59 and 31,650.48

Step by Step Solution

1. Step 1: Write the proportion equation
   51,789.75 : 71,473.59 = 31,650.48 : x
2. Step 2: Convert to fraction form
   51,789.75/71,473.59 = 31,650.48/x
3. Step 3: Cross multiply
   51,789.75x = 71,473.59 × 31,650.48
4. Step 4: Simplify right side
   51,789.75x = 2,262,173,430.82
5. Step 5: Solve for x
   x = 2,262,173,430.82/51,789.75
6. Step 6: Final answer
   x = 43,679.95