Finding the Fourth Proportional to 30,975.33, 42,746.16 and 16,828.17

Step by Step Solution

1. Step 1: Write the proportion equation
   30,975.33 : 42,746.16 = 16,828.17 : x
2. Step 2: Convert to fraction form
   30,975.33/42,746.16 = 16,828.17/x
3. Step 3: Cross multiply
   30,975.33x = 42,746.16 × 16,828.17
4. Step 4: Simplify right side
   30,975.33x = 719,339,647.33
5. Step 5: Solve for x
   x = 719,339,647.33/30,975.33
6. Step 6: Final answer
   x = 23,222.99