Finding the Fourth Proportional to 55,300.73, 76,311.71 and 31,424.09

Step by Step Solution

1. Step 1: Write the proportion equation
   55,300.73 : 76,311.71 = 31,424.09 : x
2. Step 2: Convert to fraction form
   55,300.73/76,311.71 = 31,424.09/x
3. Step 3: Cross multiply
   55,300.73x = 76,311.71 × 31,424.09
4. Step 4: Simplify right side
   55,300.73x = 2,398,025,740.10
5. Step 5: Solve for x
   x = 2,398,025,740.10/55,300.73
6. Step 6: Final answer
   x = 43,363.37