Finding the Fourth Proportional to 30,436.17, 42,001.50 and 17,007.99

Step by Step Solution

1. Step 1: Write the proportion equation
   30,436.17 : 42,001.50 = 17,007.99 : x
2. Step 2: Convert to fraction form
   30,436.17/42,001.50 = 17,007.99/x
3. Step 3: Cross multiply
   30,436.17x = 42,001.50 × 17,007.99
4. Step 4: Simplify right side
   30,436.17x = 714,361,091.99
5. Step 5: Solve for x
   x = 714,361,091.99/30,436.17
6. Step 6: Final answer
   x = 23,470.79