Finding the Fourth Proportional to 123,817.34, 170,868.61 and 67,228.72

Step by Step Solution

1. Step 1: Write the proportion equation
   123,817.34 : 170,868.61 = 67,228.72 : x
2. Step 2: Convert to fraction form
   123,817.34/170,868.61 = 67,228.72/x
3. Step 3: Cross multiply
   123,817.34x = 170,868.61 × 67,228.72
4. Step 4: Simplify right side
   123,817.34x = 11,487,277,217.18
5. Step 5: Solve for x
   x = 11,487,277,217.18/123,817.34
6. Step 6: Final answer
   x = 92,776.00