Finding the Fourth Proportional to 30,900.73, 42,643.10 and 16,753.58

Step by Step Solution

1. Step 1: Write the proportion equation
   30,900.73 : 42,643.10 = 16,753.58 : x
2. Step 2: Convert to fraction form
   30,900.73/42,643.10 = 16,753.58/x
3. Step 3: Cross multiply
   30,900.73x = 42,643.10 × 16,753.58
4. Step 4: Simplify right side
   30,900.73x = 714,424,587.30
5. Step 5: Solve for x
   x = 714,424,587.30/30,900.73
6. Step 6: Final answer
   x = 23,119.99