Finding the Fourth Proportional to 89,145.93, 123,003.21 and 52,831.38

Step by Step Solution

1. Step 1: Write the proportion equation
   89,145.93 : 123,003.21 = 52,831.38 : x
2. Step 2: Convert to fraction form
   89,145.93/123,003.21 = 52,831.38/x
3. Step 3: Cross multiply
   89,145.93x = 123,003.21 × 52,831.38
4. Step 4: Simplify right side
   89,145.93x = 6,498,429,328.73
5. Step 5: Solve for x
   x = 6,498,429,328.73/89,145.93
6. Step 6: Final answer
   x = 72,896.53