Finding the Fourth Proportional to 104,675.94, 144,396.72 and 72,789.48

Step by Step Solution

1. Step 1: Write the proportion equation
   104,675.94 : 144,396.72 = 72,789.48 : x
2. Step 2: Convert to fraction form
   104,675.94/144,396.72 = 72,789.48/x
3. Step 3: Cross multiply
   104,675.94x = 144,396.72 × 72,789.48
4. Step 4: Simplify right side
   104,675.94x = 10,510,562,162.51
5. Step 5: Solve for x
   x = 10,510,562,162.51/104,675.94
6. Step 6: Final answer
   x = 100,410.49