Finding the Fourth Proportional to 42,017.56, 63,017.52 and 18,629.08

Step by Step Solution

1. Step 1: Write the proportion equation
   42,017.56 : 63,017.52 = 18,629.08 : x
2. Step 2: Convert to fraction form
   42,017.56/63,017.52 = 18,629.08/x
3. Step 3: Cross multiply
   42,017.56x = 63,017.52 × 18,629.08
4. Step 4: Simplify right side
   42,017.56x = 1,173,958,421.48
5. Step 5: Solve for x
   x = 1,173,958,421.48/42,017.56
6. Step 6: Final answer
   x = 27,939.71