Finding the Fourth Proportional to 139,483.40, 192,503.22 and 82,894.28

Step by Step Solution

1. Step 1: Write the proportion equation
   139,483.40 : 192,503.22 = 82,894.28 : x
2. Step 2: Convert to fraction form
   139,483.40/192,503.22 = 82,894.28/x
3. Step 3: Cross multiply
   139,483.40x = 192,503.22 × 82,894.28
4. Step 4: Simplify right side
   139,483.40x = 15,957,415,819.58
5. Step 5: Solve for x
   x = 15,957,415,819.58/139,483.40
6. Step 6: Final answer
   x = 114,403.69