Finding the Fourth Proportional to 30,820.82, 42,532.71 and 16,673.68

Step by Step Solution

1. Step 1: Write the proportion equation
   30,820.82 : 42,532.71 = 16,673.68 : x
2. Step 2: Convert to fraction form
   30,820.82/42,532.71 = 16,673.68/x
3. Step 3: Cross multiply
   30,820.82x = 42,532.71 × 16,673.68
4. Step 4: Simplify right side
   30,820.82x = 709,176,796.07
5. Step 5: Solve for x
   x = 709,176,796.07/30,820.82
6. Step 6: Final answer
   x = 23,009.67