Finding the Fourth Proportional to 42,018.66, 57,967.38 and 30,077.64

Step by Step Solution

1. Step 1: Write the proportion equation
   42,018.66 : 57,967.38 = 30,077.64 : x
2. Step 2: Convert to fraction form
   42,018.66/57,967.38 = 30,077.64/x
3. Step 3: Cross multiply
   42,018.66x = 57,967.38 × 30,077.64
4. Step 4: Simplify right side
   42,018.66x = 1,743,521,987.38
5. Step 5: Solve for x
   x = 1,743,521,987.38/42,018.66
6. Step 6: Final answer
   x = 41,493.99