Finding the Fourth Proportional to 30,979.83, 42,752.27 and 17,553.57

Step by Step Solution

1. Step 1: Write the proportion equation
   30,979.83 : 42,752.27 = 17,553.57 : x
2. Step 2: Convert to fraction form
   30,979.83/42,752.27 = 17,553.57/x
3. Step 3: Cross multiply
   30,979.83x = 42,752.27 × 17,553.57
4. Step 4: Simplify right side
   30,979.83x = 750,454,964.10
5. Step 5: Solve for x
   x = 750,454,964.10/30,979.83
6. Step 6: Final answer
   x = 24,223.99