Finding the Fourth Proportional to 30,796.21, 42,498.84 and 16,649.05

Step by Step Solution

1. Step 1: Write the proportion equation
   30,796.21 : 42,498.84 = 16,649.05 : x
2. Step 2: Convert to fraction form
   30,796.21/42,498.84 = 16,649.05/x
3. Step 3: Cross multiply
   30,796.21x = 42,498.84 × 16,649.05
4. Step 4: Simplify right side
   30,796.21x = 707,565,312.10
5. Step 5: Solve for x
   x = 707,565,312.10/30,796.21
6. Step 6: Final answer
   x = 22,975.73