Finding the Fourth Proportional to 30,736.91, 42,420.98 and 17,310.79

Step by Step Solution

1. Step 1: Write the proportion equation
   30,736.91 : 42,420.98 = 17,310.79 : x
2. Step 2: Convert to fraction form
   30,736.91/42,420.98 = 17,310.79/x
3. Step 3: Cross multiply
   30,736.91x = 42,420.98 × 17,310.79
4. Step 4: Simplify right side
   30,736.91x = 734,340,676.37
5. Step 5: Solve for x
   x = 734,340,676.37/30,736.91
6. Step 6: Final answer
   x = 23,891.17