Finding the Fourth Proportional to 103,696.10, 155,544.15 and 82,960.10

Step by Step Solution

1. Step 1: Write the proportion equation
   103,696.10 : 155,544.15 = 82,960.10 : x
2. Step 2: Convert to fraction form
   103,696.10/155,544.15 = 82,960.10/x
3. Step 3: Cross multiply
   103,696.10x = 155,544.15 × 82,960.10
4. Step 4: Simplify right side
   103,696.10x = 12,903,958,238.42
5. Step 5: Solve for x
   x = 12,903,958,238.42/103,696.10
6. Step 6: Final answer
   x = 124,440.15