Finding the Fourth Proportional to 52,781.27, 72,838.20 and 28,582.16

Step by Step Solution

1. Step 1: Write the proportion equation
   52,781.27 : 72,838.20 = 28,582.16 : x
2. Step 2: Convert to fraction form
   52,781.27/72,838.20 = 28,582.16/x
3. Step 3: Cross multiply
   52,781.27x = 72,838.20 × 28,582.16
4. Step 4: Simplify right side
   52,781.27x = 2,081,873,086.51
5. Step 5: Solve for x
   x = 2,081,873,086.51/52,781.27
6. Step 6: Final answer
   x = 39,443.41