Finding the Fourth Proportional to 30,960.81, 42,726.60 and 17,532.09

Step by Step Solution

1. Step 1: Write the proportion equation
   30,960.81 : 42,726.60 = 17,532.09 : x
2. Step 2: Convert to fraction form
   30,960.81/42,726.60 = 17,532.09/x
3. Step 3: Cross multiply
   30,960.81x = 42,726.60 × 17,532.09
4. Step 4: Simplify right side
   30,960.81x = 749,086,596.59
5. Step 5: Solve for x
   x = 749,086,596.59/30,960.81
6. Step 6: Final answer
   x = 24,194.67