Finding the Fourth Proportional to 123,734.48, 170,754.06 and 67,145.87

Step by Step Solution

1. Step 1: Write the proportion equation
   123,734.48 : 170,754.06 = 67,145.87 : x
2. Step 2: Convert to fraction form
   123,734.48/170,754.06 = 67,145.87/x
3. Step 3: Cross multiply
   123,734.48x = 170,754.06 × 67,145.87
4. Step 4: Simplify right side
   123,734.48x = 11,465,429,914.73
5. Step 5: Solve for x
   x = 11,465,429,914.73/123,734.48
6. Step 6: Final answer
   x = 92,661.56