Finding the Fourth Proportional to 30,796.05, 42,498.60 and 16,648.91

Step by Step Solution

1. Step 1: Write the proportion equation
   30,796.05 : 42,498.60 = 16,648.91 : x
2. Step 2: Convert to fraction form
   30,796.05/42,498.60 = 16,648.91/x
3. Step 3: Cross multiply
   30,796.05x = 42,498.60 × 16,648.91
4. Step 4: Simplify right side
   30,796.05x = 707,555,154.03
5. Step 5: Solve for x
   x = 707,555,154.03/30,796.05
6. Step 6: Final answer
   x = 22,975.52