Finding the Fourth Proportional to 89,831.94, 123,854.34 and 59,200.28

Step by Step Solution

1. Step 1: Write the proportion equation
   89,831.94 : 123,854.34 = 59,200.28 : x
2. Step 2: Convert to fraction form
   89,831.94/123,854.34 = 59,200.28/x
3. Step 3: Cross multiply
   89,831.94x = 123,854.34 × 59,200.28
4. Step 4: Simplify right side
   89,831.94x = 7,332,210,987.94
5. Step 5: Solve for x
   x = 7,332,210,987.94/89,831.94
6. Step 6: Final answer
   x = 81,621.43