Finding the Fourth Proportional to 30,957.98, 42,722.19 and 16,810.94

Step by Step Solution

1. Step 1: Write the proportion equation
   30,957.98 : 42,722.19 = 16,810.94 : x
2. Step 2: Convert to fraction form
   30,957.98/42,722.19 = 16,810.94/x
3. Step 3: Cross multiply
   30,957.98x = 42,722.19 × 16,810.94
4. Step 4: Simplify right side
   30,957.98x = 718,200,172.76
5. Step 5: Solve for x
   x = 718,200,172.76/30,957.98
6. Step 6: Final answer
   x = 23,199.19