Finding the Fourth Proportional to 55,277.31, 76,284.72 and 31,408.02

Step by Step Solution

1. Step 1: Write the proportion equation
   55,277.31 : 76,284.72 = 31,408.02 : x
2. Step 2: Convert to fraction form
   55,277.31/76,284.72 = 31,408.02/x
3. Step 3: Cross multiply
   55,277.31x = 76,284.72 × 31,408.02
4. Step 4: Simplify right side
   55,277.31x = 2,395,952,011.45
5. Step 5: Solve for x
   x = 2,395,952,011.45/55,277.31
6. Step 6: Final answer
   x = 43,344.22