Finding the Fourth Proportional to 105,055.36, 144,930.40 and 71,051.84

Step by Step Solution

1. Step 1: Write the proportion equation
   105,055.36 : 144,930.40 = 71,051.84 : x
2. Step 2: Convert to fraction form
   105,055.36/144,930.40 = 71,051.84/x
3. Step 3: Cross multiply
   105,055.36x = 144,930.40 × 71,051.84
4. Step 4: Simplify right side
   105,055.36x = 10,297,571,591.94
5. Step 5: Solve for x
   x = 10,297,571,591.94/105,055.36
6. Step 6: Final answer
   x = 98,020.43