Finding the Fourth Proportional to 30,534.32, 42,136.59 and 17,105.48

Step by Step Solution

1. Step 1: Write the proportion equation
   30,534.32 : 42,136.59 = 17,105.48 : x
2. Step 2: Convert to fraction form
   30,534.32/42,136.59 = 17,105.48/x
3. Step 3: Cross multiply
   30,534.32x = 42,136.59 × 17,105.48
4. Step 4: Simplify right side
   30,534.32x = 720,766,597.51
5. Step 5: Solve for x
   x = 720,766,597.51/30,534.32
6. Step 6: Final answer
   x = 23,605.13