Finding the Fourth Proportional to 42,249.54, 63,315.20 and 28,034.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,249.54 : 63,315.20 = 28,034.72 : x
2. Step 2: Convert to fraction form
   42,249.54/63,315.20 = 28,034.72/x
3. Step 3: Cross multiply
   42,249.54x = 63,315.20 × 28,034.72
4. Step 4: Simplify right side
   42,249.54x = 1,775,023,903.74
5. Step 5: Solve for x
   x = 1,775,023,903.74/42,249.54
6. Step 6: Final answer
   x = 42,012.86