Finding the Fourth Proportional to 139,615.50, 192,654.81 and 79,166.82

Step by Step Solution

1. Step 1: Write the proportion equation
   139,615.50 : 192,654.81 = 79,166.82 : x
2. Step 2: Convert to fraction form
   139,615.50/192,654.81 = 79,166.82/x
3. Step 3: Cross multiply
   139,615.50x = 192,654.81 × 79,166.82
4. Step 4: Simplify right side
   139,615.50x = 15,251,868,665.40
5. Step 5: Solve for x
   x = 15,251,868,665.40/139,615.50
6. Step 6: Final answer
   x = 109,241.94