Finding the Fourth Proportional to 30,832.57, 42,548.95 and 16,685.42

Step by Step Solution

1. Step 1: Write the proportion equation
   30,832.57 : 42,548.95 = 16,685.42 : x
2. Step 2: Convert to fraction form
   30,832.57/42,548.95 = 16,685.42/x
3. Step 3: Cross multiply
   30,832.57x = 42,548.95 × 16,685.42
4. Step 4: Simplify right side
   30,832.57x = 709,947,101.31
5. Step 5: Solve for x
   x = 709,947,101.31/30,832.57
6. Step 6: Final answer
   x = 23,025.88