Finding the Fourth Proportional to 52,782.22, 72,839.28 and 28,908.82

Step by Step Solution

1. Step 1: Write the proportion equation
   52,782.22 : 72,839.28 = 28,908.82 : x
2. Step 2: Convert to fraction form
   52,782.22/72,839.28 = 28,908.82/x
3. Step 3: Cross multiply
   52,782.22x = 72,839.28 × 28,908.82
4. Step 4: Simplify right side
   52,782.22x = 2,105,697,634.45
5. Step 5: Solve for x
   x = 2,105,697,634.45/52,782.22
6. Step 6: Final answer
   x = 39,894.07