Finding the Fourth Proportional to 123,969.42, 171,076.86 and 67,381.20

Step by Step Solution

1. Step 1: Write the proportion equation
   123,969.42 : 171,076.86 = 67,381.20 : x
2. Step 2: Convert to fraction form
   123,969.42/171,076.86 = 67,381.20/x
3. Step 3: Cross multiply
   123,969.42x = 171,076.86 × 67,381.20
4. Step 4: Simplify right side
   123,969.42x = 11,527,364,119.03
5. Step 5: Solve for x
   x = 11,527,364,119.03/123,969.42
6. Step 6: Final answer
   x = 92,985.55