Finding the Fourth Proportional to 282,978.27, 424,321.34 and 83,272.73

Step by Step Solution

1. Step 1: Write the proportion equation
   282,978.27 : 424,321.34 = 83,272.73 : x
2. Step 2: Convert to fraction form
   282,978.27/424,321.34 = 83,272.73/x
3. Step 3: Cross multiply
   282,978.27x = 424,321.34 × 83,272.73
4. Step 4: Simplify right side
   282,978.27x = 35,334,393,841.09
5. Step 5: Solve for x
   x = 35,334,393,841.09/282,978.27
6. Step 6: Final answer
   x = 124,866.10