Finding the Fourth Proportional to 52,778.30, 72,834.15 and 28,579.52

Step by Step Solution

1. Step 1: Write the proportion equation
   52,778.30 : 72,834.15 = 28,579.52 : x
2. Step 2: Convert to fraction form
   52,778.30/72,834.15 = 28,579.52/x
3. Step 3: Cross multiply
   52,778.30x = 72,834.15 × 28,579.52
4. Step 4: Simplify right side
   52,778.30x = 2,081,565,046.61
5. Step 5: Solve for x
   x = 2,081,565,046.61/52,778.30
6. Step 6: Final answer
   x = 39,439.79