Finding the Fourth Proportional to 30,436.67, 42,002.19 and 17,008.49

Step by Step Solution

1. Step 1: Write the proportion equation
   30,436.67 : 42,002.19 = 17,008.49 : x
2. Step 2: Convert to fraction form
   30,436.67/42,002.19 = 17,008.49/x
3. Step 3: Cross multiply
   30,436.67x = 42,002.19 × 17,008.49
4. Step 4: Simplify right side
   30,436.67x = 714,393,828.59
5. Step 5: Solve for x
   x = 714,393,828.59/30,436.67
6. Step 6: Final answer
   x = 23,471.48