Finding the Fourth Proportional to 30,521.29, 42,121.47 and 17,092.18

Step by Step Solution

1. Step 1: Write the proportion equation
   30,521.29 : 42,121.47 = 17,092.18 : x
2. Step 2: Convert to fraction form
   30,521.29/42,121.47 = 17,092.18/x
3. Step 3: Cross multiply
   30,521.29x = 42,121.47 × 17,092.18
4. Step 4: Simplify right side
   30,521.29x = 719,947,747.10
5. Step 5: Solve for x
   x = 719,947,747.10/30,521.29
6. Step 6: Final answer
   x = 23,588.38