Finding the Fourth Proportional to 30,998.50, 42,777.83 and 16,851.24

Step by Step Solution

1. Step 1: Write the proportion equation
   30,998.50 : 42,777.83 = 16,851.24 : x
2. Step 2: Convert to fraction form
   30,998.50/42,777.83 = 16,851.24/x
3. Step 3: Cross multiply
   30,998.50x = 42,777.83 × 16,851.24
4. Step 4: Simplify right side
   30,998.50x = 720,859,544.83
5. Step 5: Solve for x
   x = 720,859,544.83/30,998.50
6. Step 6: Final answer
   x = 23,254.66