Finding the Fourth Proportional to 67,940.96, 101,857.83 and 42,928.22

Step by Step Solution

1. Step 1: Write the proportion equation
   67,940.96 : 101,857.83 = 42,928.22 : x
2. Step 2: Convert to fraction form
   67,940.96/101,857.83 = 42,928.22/x
3. Step 3: Cross multiply
   67,940.96x = 101,857.83 × 42,928.22
4. Step 4: Simplify right side
   67,940.96x = 4,372,574,825.67
5. Step 5: Solve for x
   x = 4,372,574,825.67/67,940.96
6. Step 6: Final answer
   x = 64,358.45