Finding the Fourth Proportional to 123,818.34, 170,869.99 and 67,229.72

Step by Step Solution

1. Step 1: Write the proportion equation
   123,818.34 : 170,869.99 = 67,229.72 : x
2. Step 2: Convert to fraction form
   123,818.34/170,869.99 = 67,229.72/x
3. Step 3: Cross multiply
   123,818.34x = 170,869.99 × 67,229.72
4. Step 4: Simplify right side
   123,818.34x = 11,487,541,584.10
5. Step 5: Solve for x
   x = 11,487,541,584.10/123,818.34
6. Step 6: Final answer
   x = 92,777.38