Finding the Fourth Proportional to 55,139.52, 82,674.72 and 36,399.68

Step by Step Solution

1. Step 1: Write the proportion equation
   55,139.52 : 82,674.72 = 36,399.68 : x
2. Step 2: Convert to fraction form
   55,139.52/82,674.72 = 36,399.68/x
3. Step 3: Cross multiply
   55,139.52x = 82,674.72 × 36,399.68
4. Step 4: Simplify right side
   55,139.52x = 3,009,333,352.09
5. Step 5: Solve for x
   x = 3,009,333,352.09/55,139.52
6. Step 6: Final answer
   x = 54,576.71