Finding the Fourth Proportional to 30,672.34, 42,331.31 and 17,061.71

Step by Step Solution

1. Step 1: Write the proportion equation
   30,672.34 : 42,331.31 = 17,061.71 : x
2. Step 2: Convert to fraction form
   30,672.34/42,331.31 = 17,061.71/x
3. Step 3: Cross multiply
   30,672.34x = 42,331.31 × 17,061.71
4. Step 4: Simplify right side
   30,672.34x = 722,244,302.16
5. Step 5: Solve for x
   x = 722,244,302.16/30,672.34
6. Step 6: Final answer
   x = 23,547.09