Finding the Fourth Proportional to 55,276.81, 76,282.25 and 31,404.79

Step by Step Solution

1. Step 1: Write the proportion equation
   55,276.81 : 76,282.25 = 31,404.79 : x
2. Step 2: Convert to fraction form
   55,276.81/76,282.25 = 31,404.79/x
3. Step 3: Cross multiply
   55,276.81x = 76,282.25 × 31,404.79
4. Step 4: Simplify right side
   55,276.81x = 2,395,627,503.54
5. Step 5: Solve for x
   x = 2,395,627,503.54/55,276.81
6. Step 6: Final answer
   x = 43,338.75