Finding the Fourth Proportional to 30,436.81, 42,002.01 and 17,008.17

Step by Step Solution

1. Step 1: Write the proportion equation
   30,436.81 : 42,002.01 = 17,008.17 : x
2. Step 2: Convert to fraction form
   30,436.81/42,002.01 = 17,008.17/x
3. Step 3: Cross multiply
   30,436.81x = 42,002.01 × 17,008.17
4. Step 4: Simplify right side
   30,436.81x = 714,377,326.42
5. Step 5: Solve for x
   x = 714,377,326.42/30,436.81
6. Step 6: Final answer
   x = 23,470.84