Finding the Fourth Proportional to 30,913.29, 42,659.42 and 17,116.24

Step by Step Solution

1. Step 1: Write the proportion equation
   30,913.29 : 42,659.42 = 17,116.24 : x
2. Step 2: Convert to fraction form
   30,913.29/42,659.42 = 17,116.24/x
3. Step 3: Cross multiply
   30,913.29x = 42,659.42 × 17,116.24
4. Step 4: Simplify right side
   30,913.29x = 730,168,870.98
5. Step 5: Solve for x
   x = 730,168,870.98/30,913.29
6. Step 6: Final answer
   x = 23,619.90