Finding the Fourth Proportional to 30,884.88, 42,621.20 and 17,456.16

Step by Step Solution

1. Step 1: Write the proportion equation
   30,884.88 : 42,621.20 = 17,456.16 : x
2. Step 2: Convert to fraction form
   30,884.88/42,621.20 = 17,456.16/x
3. Step 3: Cross multiply
   30,884.88x = 42,621.20 × 17,456.16
4. Step 4: Simplify right side
   30,884.88x = 744,002,486.59
5. Step 5: Solve for x
   x = 744,002,486.59/30,884.88
6. Step 6: Final answer
   x = 24,089.54