Finding the Fourth Proportional to 30,680.91, 42,339.41 and 17,252.12

Step by Step Solution

1. Step 1: Write the proportion equation
   30,680.91 : 42,339.41 = 17,252.12 : x
2. Step 2: Convert to fraction form
   30,680.91/42,339.41 = 17,252.12/x
3. Step 3: Cross multiply
   30,680.91x = 42,339.41 × 17,252.12
4. Step 4: Simplify right side
   30,680.91x = 730,444,666.33
5. Step 5: Solve for x
   x = 730,444,666.33/30,680.91
6. Step 6: Final answer
   x = 23,807.79