Finding the Fourth Proportional to 42,078.56, 63,111.69 and 17,119.08

Step by Step Solution

1. Step 1: Write the proportion equation
   42,078.56 : 63,111.69 = 17,119.08 : x
2. Step 2: Convert to fraction form
   42,078.56/63,111.69 = 17,119.08/x
3. Step 3: Cross multiply
   42,078.56x = 63,111.69 × 17,119.08
4. Step 4: Simplify right side
   42,078.56x = 1,080,414,408.52
5. Step 5: Solve for x
   x = 1,080,414,408.52/42,078.56
6. Step 6: Final answer
   x = 25,676.12