Finding the Fourth Proportional to 282,978.78, 424,322.06 and 83,273.22

Step by Step Solution

1. Step 1: Write the proportion equation
   282,978.78 : 424,322.06 = 83,273.22 : x
2. Step 2: Convert to fraction form
   282,978.78/424,322.06 = 83,273.22/x
3. Step 3: Cross multiply
   282,978.78x = 424,322.06 × 83,273.22
4. Step 4: Simplify right side
   282,978.78x = 35,334,664,253.23
5. Step 5: Solve for x
   x = 35,334,664,253.23/282,978.78
6. Step 6: Final answer
   x = 124,866.83