Finding the Fourth Proportional to 123,736.38, 170,756.31 and 67,147.76

Step by Step Solution

1. Step 1: Write the proportion equation
   123,736.38 : 170,756.31 = 67,147.76 : x
2. Step 2: Convert to fraction form
   123,736.38/170,756.31 = 67,147.76/x
3. Step 3: Cross multiply
   123,736.38x = 170,756.31 × 67,147.76
4. Step 4: Simplify right side
   123,736.38x = 11,465,903,120.39
5. Step 5: Solve for x
   x = 11,465,903,120.39/123,736.38
6. Step 6: Final answer
   x = 92,663.96