Finding the Fourth Proportional to 30,851.15, 42,574.61 and 16,704

Step by Step Solution

1. Step 1: Write the proportion equation
   30,851.15 : 42,574.61 = 16,704 : x
2. Step 2: Convert to fraction form
   30,851.15/42,574.61 = 16,704/x
3. Step 3: Cross multiply
   30,851.15x = 42,574.61 × 16,704
4. Step 4: Simplify right side
   30,851.15x = 711,166,327.20
5. Step 5: Solve for x
   x = 711,166,327.20/30,851.15
6. Step 6: Final answer
   x = 23,051.54