Finding the Fourth Proportional to 82,866.48, 123,662.69 and 82,393.17

Step by Step Solution

1. Step 1: Write the proportion equation
   82,866.48 : 123,662.69 = 82,393.17 : x
2. Step 2: Convert to fraction form
   82,866.48/123,662.69 = 82,393.17/x
3. Step 3: Cross multiply
   82,866.48x = 123,662.69 × 82,393.17
4. Step 4: Simplify right side
   82,866.48x = 10,188,960,627.86
5. Step 5: Solve for x
   x = 10,188,960,627.86/82,866.48
6. Step 6: Final answer
   x = 122,956.36