Finding the Fourth Proportional to 30,671.90, 42,326.81 and 17,059.82

Step by Step Solution

1. Step 1: Write the proportion equation
   30,671.90 : 42,326.81 = 17,059.82 : x
2. Step 2: Convert to fraction form
   30,671.90/42,326.81 = 17,059.82/x
3. Step 3: Cross multiply
   30,671.90x = 42,326.81 × 17,059.82
4. Step 4: Simplify right side
   30,671.90x = 722,087,610.33
5. Step 5: Solve for x
   x = 722,087,610.33/30,671.90
6. Step 6: Final answer
   x = 23,542.31