Finding the Fourth Proportional to 123,958.58, 170,866.54 and 113,661.46

Step by Step Solution

1. Step 1: Write the proportion equation
   123,958.58 : 170,866.54 = 113,661.46 : x
2. Step 2: Convert to fraction form
   123,958.58/170,866.54 = 113,661.46/x
3. Step 3: Cross multiply
   123,958.58x = 170,866.54 × 113,661.46
4. Step 4: Simplify right side
   123,958.58x = 19,420,940,401.55
5. Step 5: Solve for x
   x = 19,420,940,401.55/123,958.58
6. Step 6: Final answer
   x = 156,672.82