Finding the Fourth Proportional to 72,311.58, 108,052.82 and 55,119.33

Step by Step Solution

1. Step 1: Write the proportion equation
   72,311.58 : 108,052.82 = 55,119.33 : x
2. Step 2: Convert to fraction form
   72,311.58/108,052.82 = 55,119.33/x
3. Step 3: Cross multiply
   72,311.58x = 108,052.82 × 55,119.33
4. Step 4: Simplify right side
   72,311.58x = 5,955,798,767.41
5. Step 5: Solve for x
   x = 5,955,798,767.41/72,311.58
6. Step 6: Final answer
   x = 82,363.00