Finding the Fourth Proportional to 52,842.54, 72,920.77 and 28,968.69

Step by Step Solution

1. Step 1: Write the proportion equation
   52,842.54 : 72,920.77 = 28,968.69 : x
2. Step 2: Convert to fraction form
   52,842.54/72,920.77 = 28,968.69/x
3. Step 3: Cross multiply
   52,842.54x = 72,920.77 × 28,968.69
4. Step 4: Simplify right side
   52,842.54x = 2,112,419,180.69
5. Step 5: Solve for x
   x = 2,112,419,180.69/52,842.54
6. Step 6: Final answer
   x = 39,975.73