Finding the Fourth Proportional to 139,969.92, 193,131.12 and 82,627.20

Step by Step Solution

1. Step 1: Write the proportion equation
   139,969.92 : 193,131.12 = 82,627.20 : x
2. Step 2: Convert to fraction form
   139,969.92/193,131.12 = 82,627.20/x
3. Step 3: Cross multiply
   139,969.92x = 193,131.12 × 82,627.20
4. Step 4: Simplify right side
   139,969.92x = 15,957,883,678.46
5. Step 5: Solve for x
   x = 15,957,883,678.46/139,969.92
6. Step 6: Final answer
   x = 114,009.38