Finding the Fourth Proportional to 30,858.16, 42,584.20 and 16,710.96

Step by Step Solution

1. Step 1: Write the proportion equation
   30,858.16 : 42,584.20 = 16,710.96 : x
2. Step 2: Convert to fraction form
   30,858.16/42,584.20 = 16,710.96/x
3. Step 3: Cross multiply
   30,858.16x = 42,584.20 × 16,710.96
4. Step 4: Simplify right side
   30,858.16x = 711,622,862.83
5. Step 5: Solve for x
   x = 711,622,862.83/30,858.16
6. Step 6: Final answer
   x = 23,061.09