Finding the Fourth Proportional to 30,513.50, 42,109.41 and 17,087.59

Step by Step Solution

1. Step 1: Write the proportion equation
   30,513.50 : 42,109.41 = 17,087.59 : x
2. Step 2: Convert to fraction form
   30,513.50/42,109.41 = 17,087.59/x
3. Step 3: Cross multiply
   30,513.50x = 42,109.41 × 17,087.59
4. Step 4: Simplify right side
   30,513.50x = 719,548,333.22
5. Step 5: Solve for x
   x = 719,548,333.22/30,513.50
6. Step 6: Final answer
   x = 23,581.31