Finding the Fourth Proportional to 67,939.30, 101,451.46 and 55,484.05

Step by Step Solution

1. Step 1: Write the proportion equation
   67,939.30 : 101,451.46 = 55,484.05 : x
2. Step 2: Convert to fraction form
   67,939.30/101,451.46 = 55,484.05/x
3. Step 3: Cross multiply
   67,939.30x = 101,451.46 × 55,484.05
4. Step 4: Simplify right side
   67,939.30x = 5,628,938,017.92
5. Step 5: Solve for x
   x = 5,628,938,017.92/67,939.30
6. Step 6: Final answer
   x = 82,852.46