Finding the Fourth Proportional to 30,796.36, 42,498.98 and 16,649.21

Step by Step Solution

1. Step 1: Write the proportion equation
   30,796.36 : 42,498.98 = 16,649.21 : x
2. Step 2: Convert to fraction form
   30,796.36/42,498.98 = 16,649.21/x
3. Step 3: Cross multiply
   30,796.36x = 42,498.98 × 16,649.21
4. Step 4: Simplify right side
   30,796.36x = 707,574,147.06
5. Step 5: Solve for x
   x = 707,574,147.06/30,796.36
6. Step 6: Final answer
   x = 22,975.90