Finding the Fourth Proportional to 52,644.71, 72,649.53 and 28,771.38

Step by Step Solution

1. Step 1: Write the proportion equation
   52,644.71 : 72,649.53 = 28,771.38 : x
2. Step 2: Convert to fraction form
   52,644.71/72,649.53 = 28,771.38/x
3. Step 3: Cross multiply
   52,644.71x = 72,649.53 × 28,771.38
4. Step 4: Simplify right side
   52,644.71x = 2,090,227,090.59
5. Step 5: Solve for x
   x = 2,090,227,090.59/52,644.71
6. Step 6: Final answer
   x = 39,704.41