Finding the Fourth Proportional to 30,858.99, 42,585.32 and 16,711.83

Step by Step Solution

1. Step 1: Write the proportion equation
   30,858.99 : 42,585.32 = 16,711.83 : x
2. Step 2: Convert to fraction form
   30,858.99/42,585.32 = 16,711.83/x
3. Step 3: Cross multiply
   30,858.99x = 42,585.32 × 16,711.83
4. Step 4: Simplify right side
   30,858.99x = 711,678,544.78
5. Step 5: Solve for x
   x = 711,678,544.78/30,858.99
6. Step 6: Final answer
   x = 23,062.28