Finding the Fourth Proportional to 52,784.22, 72,842.04 and 28,910.82

Step by Step Solution

1. Step 1: Write the proportion equation
   52,784.22 : 72,842.04 = 28,910.82 : x
2. Step 2: Convert to fraction form
   52,784.22/72,842.04 = 28,910.82/x
3. Step 3: Cross multiply
   52,784.22x = 72,842.04 × 28,910.82
4. Step 4: Simplify right side
   52,784.22x = 2,105,923,106.87
5. Step 5: Solve for x
   x = 2,105,923,106.87/52,784.22
6. Step 6: Final answer
   x = 39,896.83