Finding the Fourth Proportional to 123,574.83, 170,673.30 and 83,218.38

Step by Step Solution

1. Step 1: Write the proportion equation
   123,574.83 : 170,673.30 = 83,218.38 : x
2. Step 2: Convert to fraction form
   123,574.83/170,673.30 = 83,218.38/x
3. Step 3: Cross multiply
   123,574.83x = 170,673.30 × 83,218.38
4. Step 4: Simplify right side
   123,574.83x = 14,203,155,535.25
5. Step 5: Solve for x
   x = 14,203,155,535.25/123,574.83
6. Step 6: Final answer
   x = 114,935.67