Finding the Fourth Proportional to 166,726.78, 250,090.53 and 42,067.78

Step by Step Solution

1. Step 1: Write the proportion equation
   166,726.78 : 250,090.53 = 42,067.78 : x
2. Step 2: Convert to fraction form
   166,726.78/250,090.53 = 42,067.78/x
3. Step 3: Cross multiply
   166,726.78x = 250,090.53 × 42,067.78
4. Step 4: Simplify right side
   166,726.78x = 10,520,753,396.12
5. Step 5: Solve for x
   x = 10,520,753,396.12/166,726.78
6. Step 6: Final answer
   x = 63,101.76