Finding the Fourth Proportional to 123,414.96, 170,185.32 and 105,569.04

Step by Step Solution

1. Step 1: Write the proportion equation
   123,414.96 : 170,185.32 = 105,569.04 : x
2. Step 2: Convert to fraction form
   123,414.96/170,185.32 = 105,569.04/x
3. Step 3: Cross multiply
   123,414.96x = 170,185.32 × 105,569.04
4. Step 4: Simplify right side
   123,414.96x = 17,966,300,854.49
5. Step 5: Solve for x
   x = 17,966,300,854.49/123,414.96
6. Step 6: Final answer
   x = 145,576.36