Finding the Fourth Proportional to 30,796.71, 42,499.53 and 16,649.55

Step by Step Solution

1. Step 1: Write the proportion equation
   30,796.71 : 42,499.53 = 16,649.55 : x
2. Step 2: Convert to fraction form
   30,796.71/42,499.53 = 16,649.55/x
3. Step 3: Cross multiply
   30,796.71x = 42,499.53 × 16,649.55
4. Step 4: Simplify right side
   30,796.71x = 707,598,049.71
5. Step 5: Solve for x
   x = 707,598,049.71/30,796.71
6. Step 6: Final answer
   x = 22,976.42