Finding the Fourth Proportional to 30,796.80, 42,499.56 and 16,649.52

Step by Step Solution

1. Step 1: Write the proportion equation
   30,796.80 : 42,499.56 = 16,649.52 : x
2. Step 2: Convert to fraction form
   30,796.80/42,499.56 = 16,649.52/x
3. Step 3: Cross multiply
   30,796.80x = 42,499.56 × 16,649.52
4. Step 4: Simplify right side
   30,796.80x = 707,597,274.21
5. Step 5: Solve for x
   x = 707,597,274.21/30,796.80
6. Step 6: Final answer
   x = 22,976.32