Finding the Fourth Proportional to 30,961, 42,725.76 and 16,814.38

Step by Step Solution

1. Step 1: Write the proportion equation
   30,961 : 42,725.76 = 16,814.38 : x
2. Step 2: Convert to fraction form
   30,961/42,725.76 = 16,814.38/x
3. Step 3: Cross multiply
   30,961x = 42,725.76 × 16,814.38
4. Step 4: Simplify right side
   30,961x = 718,407,164.43
5. Step 5: Solve for x
   x = 718,407,164.43/30,961
6. Step 6: Final answer
   x = 23,203.62