Finding the Fourth Proportional to 67,945.79, 101,955.34 and 39,920.58

Step by Step Solution

1. Step 1: Write the proportion equation
   67,945.79 : 101,955.34 = 39,920.58 : x
2. Step 2: Convert to fraction form
   67,945.79/101,955.34 = 39,920.58/x
3. Step 3: Cross multiply
   67,945.79x = 101,955.34 × 39,920.58
4. Step 4: Simplify right side
   67,945.79x = 4,070,116,306.90
5. Step 5: Solve for x
   x = 4,070,116,306.90/67,945.79
6. Step 6: Final answer
   x = 59,902.41