Finding the Fourth Proportional to 105,665.97, 145,573.97 and 73,784.37

Step by Step Solution

1. Step 1: Write the proportion equation
   105,665.97 : 145,573.97 = 73,784.37 : x
2. Step 2: Convert to fraction form
   105,665.97/145,573.97 = 73,784.37/x
3. Step 3: Cross multiply
   105,665.97x = 145,573.97 × 73,784.37
4. Step 4: Simplify right side
   105,665.97x = 10,741,083,295.93
5. Step 5: Solve for x
   x = 10,741,083,295.93/105,665.97
6. Step 6: Final answer
   x = 101,651.30