Finding the Fourth Proportional to 52,768.22, 72,820.25 and 28,569.43

Step by Step Solution

1. Step 1: Write the proportion equation
   52,768.22 : 72,820.25 = 28,569.43 : x
2. Step 2: Convert to fraction form
   52,768.22/72,820.25 = 28,569.43/x
3. Step 3: Cross multiply
   52,768.22x = 72,820.25 × 28,569.43
4. Step 4: Simplify right side
   52,768.22x = 2,080,433,090.27
5. Step 5: Solve for x
   x = 2,080,433,090.27/52,768.22
6. Step 6: Final answer
   x = 39,425.88