Finding the Fourth Proportional to 105,717.42, 145,896.84 and 69,844.59

Step by Step Solution

1. Step 1: Write the proportion equation
   105,717.42 : 145,896.84 = 69,844.59 : x
2. Step 2: Convert to fraction form
   105,717.42/145,896.84 = 69,844.59/x
3. Step 3: Cross multiply
   105,717.42x = 145,896.84 × 69,844.59
4. Step 4: Simplify right side
   105,717.42x = 10,190,104,972.10
5. Step 5: Solve for x
   x = 10,190,104,972.10/105,717.42
6. Step 6: Final answer
   x = 96,390.03