Finding the Fourth Proportional to 30,139.41, 41,590.72 and 16,709.88

Step by Step Solution

1. Step 1: Write the proportion equation
   30,139.41 : 41,590.72 = 16,709.88 : x
2. Step 2: Convert to fraction form
   30,139.41/41,590.72 = 16,709.88/x
3. Step 3: Cross multiply
   30,139.41x = 41,590.72 × 16,709.88
4. Step 4: Simplify right side
   30,139.41x = 694,975,940.31
5. Step 5: Solve for x
   x = 694,975,940.31/30,139.41
6. Step 6: Final answer
   x = 23,058.71