Finding the Fourth Proportional to 42,649.74, 63,997.02 and 30,249.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,649.74 : 63,997.02 = 30,249.72 : x
2. Step 2: Convert to fraction form
   42,649.74/63,997.02 = 30,249.72/x
3. Step 3: Cross multiply
   42,649.74x = 63,997.02 × 30,249.72
4. Step 4: Simplify right side
   42,649.74x = 1,935,891,935.83
5. Step 5: Solve for x
   x = 1,935,891,935.83/42,649.74
6. Step 6: Final answer
   x = 45,390.47