Finding the Fourth Proportional to 30,588.69, 42,209.91 and 17,158.08

Step by Step Solution

1. Step 1: Write the proportion equation
   30,588.69 : 42,209.91 = 17,158.08 : x
2. Step 2: Convert to fraction form
   30,588.69/42,209.91 = 17,158.08/x
3. Step 3: Cross multiply
   30,588.69x = 42,209.91 × 17,158.08
4. Step 4: Simplify right side
   30,588.69x = 724,241,012.57
5. Step 5: Solve for x
   x = 724,241,012.57/30,588.69
6. Step 6: Final answer
   x = 23,676.76