Finding the Fourth Proportional to 123,874.86, 170,946.72 and 67,286.10

Step by Step Solution

1. Step 1: Write the proportion equation
   123,874.86 : 170,946.72 = 67,286.10 : x
2. Step 2: Convert to fraction form
   123,874.86/170,946.72 = 67,286.10/x
3. Step 3: Cross multiply
   123,874.86x = 170,946.72 × 67,286.10
4. Step 4: Simplify right side
   123,874.86x = 11,502,338,096.59
5. Step 5: Solve for x
   x = 11,502,338,096.59/123,874.86
6. Step 6: Final answer
   x = 92,854.50