Finding the Fourth Proportional to 30,796.20, 42,498.72 and 16,649.04

Step by Step Solution

1. Step 1: Write the proportion equation
   30,796.20 : 42,498.72 = 16,649.04 : x
2. Step 2: Convert to fraction form
   30,796.20/42,498.72 = 16,649.04/x
3. Step 3: Cross multiply
   30,796.20x = 42,498.72 × 16,649.04
4. Step 4: Simplify right side
   30,796.20x = 707,562,889.23
5. Step 5: Solve for x
   x = 707,562,889.23/30,796.20
6. Step 6: Final answer
   x = 22,975.66