Finding the Fourth Proportional to 30,885.36, 42,622.65 and 17,456.34

Step by Step Solution

1. Step 1: Write the proportion equation
   30,885.36 : 42,622.65 = 17,456.34 : x
2. Step 2: Convert to fraction form
   30,885.36/42,622.65 = 17,456.34/x
3. Step 3: Cross multiply
   30,885.36x = 42,622.65 × 17,456.34
4. Step 4: Simplify right side
   30,885.36x = 744,035,470.10
5. Step 5: Solve for x
   x = 744,035,470.10/30,885.36
6. Step 6: Final answer
   x = 24,090.23