Finding the Fourth Proportional to 101,258.49, 139,736.16 and 55,939.59

Step by Step Solution

1. Step 1: Write the proportion equation
   101,258.49 : 139,736.16 = 55,939.59 : x
2. Step 2: Convert to fraction form
   101,258.49/139,736.16 = 55,939.59/x
3. Step 3: Cross multiply
   101,258.49x = 139,736.16 × 55,939.59
4. Step 4: Simplify right side
   101,258.49x = 7,816,783,498.57
5. Step 5: Solve for x
   x = 7,816,783,498.57/101,258.49
6. Step 6: Final answer
   x = 77,196.33