Finding the Fourth Proportional to 30,684.91, 42,344.77 and 17,256.16

Step by Step Solution

1. Step 1: Write the proportion equation
   30,684.91 : 42,344.77 = 17,256.16 : x
2. Step 2: Convert to fraction form
   30,684.91/42,344.77 = 17,256.16/x
3. Step 3: Cross multiply
   30,684.91x = 42,344.77 × 17,256.16
4. Step 4: Simplify right side
   30,684.91x = 730,708,020.42
5. Step 5: Solve for x
   x = 730,708,020.42/30,684.91
6. Step 6: Final answer
   x = 23,813.27