Finding the Fourth Proportional to 67,945.72, 93,765.75 and 39,645.94

Step by Step Solution

1. Step 1: Write the proportion equation
   67,945.72 : 93,765.75 = 39,645.94 : x
2. Step 2: Convert to fraction form
   67,945.72/93,765.75 = 39,645.94/x
3. Step 3: Cross multiply
   67,945.72x = 93,765.75 × 39,645.94
4. Step 4: Simplify right side
   67,945.72x = 3,717,431,298.56
5. Step 5: Solve for x
   x = 3,717,431,298.56/67,945.72
6. Step 6: Final answer
   x = 54,711.78