Finding the Fourth Proportional to 30,534.07, 42,134.20 and 17,105.89

Step by Step Solution

1. Step 1: Write the proportion equation
   30,534.07 : 42,134.20 = 17,105.89 : x
2. Step 2: Convert to fraction form
   30,534.07/42,134.20 = 17,105.89/x
3. Step 3: Cross multiply
   30,534.07x = 42,134.20 × 17,105.89
4. Step 4: Simplify right side
   30,534.07x = 720,743,117.16
5. Step 5: Solve for x
   x = 720,743,117.16/30,534.07
6. Step 6: Final answer
   x = 23,604.55