Finding the Fourth Proportional to 123,703.56, 170,710.20 and 67,113.72

Step by Step Solution

1. Step 1: Write the proportion equation
   123,703.56 : 170,710.20 = 67,113.72 : x
2. Step 2: Convert to fraction form
   123,703.56/170,710.20 = 67,113.72/x
3. Step 3: Cross multiply
   123,703.56x = 170,710.20 × 67,113.72
4. Step 4: Simplify right side
   123,703.56x = 11,456,996,563.94
5. Step 5: Solve for x
   x = 11,456,996,563.94/123,703.56
6. Step 6: Final answer
   x = 92,616.55