Finding the Fourth Proportional to 52,028.78, 71,799.72 and 28,155.46

Step by Step Solution

1. Step 1: Write the proportion equation
   52,028.78 : 71,799.72 = 28,155.46 : x
2. Step 2: Convert to fraction form
   52,028.78/71,799.72 = 28,155.46/x
3. Step 3: Cross multiply
   52,028.78x = 71,799.72 × 28,155.46
4. Step 4: Simplify right side
   52,028.78x = 2,021,553,785.47
5. Step 5: Solve for x
   x = 2,021,553,785.47/52,028.78
6. Step 6: Final answer
   x = 38,854.53