Finding the Fourth Proportional to 30,878.72, 42,610.08 and 17,451.16

Step by Step Solution

1. Step 1: Write the proportion equation
   30,878.72 : 42,610.08 = 17,451.16 : x
2. Step 2: Convert to fraction form
   30,878.72/42,610.08 = 17,451.16/x
3. Step 3: Cross multiply
   30,878.72x = 42,610.08 × 17,451.16
4. Step 4: Simplify right side
   30,878.72x = 743,595,323.69
5. Step 5: Solve for x
   x = 743,595,323.69/30,878.72
6. Step 6: Final answer
   x = 24,081.16