Finding the Fourth Proportional to 67,940.05, 101,452.58 and 55,484.80

Step by Step Solution

1. Step 1: Write the proportion equation
   67,940.05 : 101,452.58 = 55,484.80 : x
2. Step 2: Convert to fraction form
   67,940.05/101,452.58 = 55,484.80/x
3. Step 3: Cross multiply
   67,940.05x = 101,452.58 × 55,484.80
4. Step 4: Simplify right side
   67,940.05x = 5,629,076,110.78
5. Step 5: Solve for x
   x = 5,629,076,110.78/67,940.05
6. Step 6: Final answer
   x = 82,853.58