Finding the Fourth Proportional to 55,323.36, 76,345.89 and 31,450.03

Step by Step Solution

1. Step 1: Write the proportion equation
   55,323.36 : 76,345.89 = 31,450.03 : x
2. Step 2: Convert to fraction form
   55,323.36/76,345.89 = 31,450.03/x
3. Step 3: Cross multiply
   55,323.36x = 76,345.89 × 31,450.03
4. Step 4: Simplify right side
   55,323.36x = 2,401,080,530.88
5. Step 5: Solve for x
   x = 2,401,080,530.88/55,323.36
6. Step 6: Final answer
   x = 43,400.84