Finding the Fourth Proportional to 55,418.05, 76,480.81 and 31,544.72

Step by Step Solution

1. Step 1: Write the proportion equation
   55,418.05 : 76,480.81 = 31,544.72 : x
2. Step 2: Convert to fraction form
   55,418.05/76,480.81 = 31,544.72/x
3. Step 3: Cross multiply
   55,418.05x = 76,480.81 × 31,544.72
4. Step 4: Simplify right side
   55,418.05x = 2,412,565,736.82
5. Step 5: Solve for x
   x = 2,412,565,736.82/55,418.05
6. Step 6: Final answer
   x = 43,533.93