Finding the Fourth Proportional to 123,760.18, 170,784.48 and 67,170.34

Step by Step Solution

1. Step 1: Write the proportion equation
   123,760.18 : 170,784.48 = 67,170.34 : x
2. Step 2: Convert to fraction form
   123,760.18/170,784.48 = 67,170.34/x
3. Step 3: Cross multiply
   123,760.18x = 170,784.48 × 67,170.34
4. Step 4: Simplify right side
   123,760.18x = 11,471,651,588.32
5. Step 5: Solve for x
   x = 11,471,651,588.32/123,760.18
6. Step 6: Final answer
   x = 92,692.59