Finding the Fourth Proportional to 104,931.79, 144,789.33 and 58,982.38

Step by Step Solution

1. Step 1: Write the proportion equation
   104,931.79 : 144,789.33 = 58,982.38 : x
2. Step 2: Convert to fraction form
   104,931.79/144,789.33 = 58,982.38/x
3. Step 3: Cross multiply
   104,931.79x = 144,789.33 × 58,982.38
4. Step 4: Simplify right side
   104,931.79x = 8,540,019,282.01
5. Step 5: Solve for x
   x = 8,540,019,282.01/104,931.79
6. Step 6: Final answer
   x = 81,386.39