Finding the Fourth Proportional to 30,832.39, 42,548.83 and 16,685.23

Step by Step Solution

1. Step 1: Write the proportion equation
   30,832.39 : 42,548.83 = 16,685.23 : x
2. Step 2: Convert to fraction form
   30,832.39/42,548.83 = 16,685.23/x
3. Step 3: Cross multiply
   30,832.39x = 42,548.83 × 16,685.23
4. Step 4: Simplify right side
   30,832.39x = 709,936,931.35
5. Step 5: Solve for x
   x = 709,936,931.35/30,832.39
6. Step 6: Final answer
   x = 23,025.69