Finding the Fourth Proportional to 52,782.09, 72,839.27 and 28,908.82

Step by Step Solution

1. Step 1: Write the proportion equation
   52,782.09 : 72,839.27 = 28,908.82 : x
2. Step 2: Convert to fraction form
   52,782.09/72,839.27 = 28,908.82/x
3. Step 3: Cross multiply
   52,782.09x = 72,839.27 × 28,908.82
4. Step 4: Simplify right side
   52,782.09x = 2,105,697,345.36
5. Step 5: Solve for x
   x = 2,105,697,345.36/52,782.09
6. Step 6: Final answer
   x = 39,894.16