Finding the Fourth Proportional to 55,799.69, 76,984.56 and 31,909.28

Step by Step Solution

1. Step 1: Write the proportion equation
   55,799.69 : 76,984.56 = 31,909.28 : x
2. Step 2: Convert to fraction form
   55,799.69/76,984.56 = 31,909.28/x
3. Step 3: Cross multiply
   55,799.69x = 76,984.56 × 31,909.28
4. Step 4: Simplify right side
   55,799.69x = 2,456,521,495.79
5. Step 5: Solve for x
   x = 2,456,521,495.79/55,799.69
6. Step 6: Final answer
   x = 44,023.93