Finding the Fourth Proportional to 67,640.96, 93,382.06 and 40,790.27

Step by Step Solution

1. Step 1: Write the proportion equation
   67,640.96 : 93,382.06 = 40,790.27 : x
2. Step 2: Convert to fraction form
   67,640.96/93,382.06 = 40,790.27/x
3. Step 3: Cross multiply
   67,640.96x = 93,382.06 × 40,790.27
4. Step 4: Simplify right side
   67,640.96x = 3,809,078,871.67
5. Step 5: Solve for x
   x = 3,809,078,871.67/67,640.96
6. Step 6: Final answer
   x = 56,313.20