Finding the Fourth Proportional to 248,608, 372,970.32 and 82,396

Step by Step Solution

1. Step 1: Write the proportion equation
   248,608 : 372,970.32 = 82,396 : x
2. Step 2: Convert to fraction form
   248,608/372,970.32 = 82,396/x
3. Step 3: Cross multiply
   248,608x = 372,970.32 × 82,396
4. Step 4: Simplify right side
   248,608x = 30,731,262,486.72
5. Step 5: Solve for x
   x = 30,731,262,486.72/248,608
6. Step 6: Final answer
   x = 123,613.33