Finding the Fourth Proportional to 123,831.36, 170,930.88 and 73,530

Step by Step Solution

1. Step 1: Write the proportion equation
   123,831.36 : 170,930.88 = 73,530 : x
2. Step 2: Convert to fraction form
   123,831.36/170,930.88 = 73,530/x
3. Step 3: Cross multiply
   123,831.36x = 170,930.88 × 73,530
4. Step 4: Simplify right side
   123,831.36x = 12,568,547,606.40
5. Step 5: Solve for x
   x = 12,568,547,606.40/123,831.36
6. Step 6: Final answer
   x = 101,497.29