Finding the Fourth Proportional to 30,934.17, 42,688.01 and 16,786.71

Step by Step Solution

1. Step 1: Write the proportion equation
   30,934.17 : 42,688.01 = 16,786.71 : x
2. Step 2: Convert to fraction form
   30,934.17/42,688.01 = 16,786.71/x
3. Step 3: Cross multiply
   30,934.17x = 42,688.01 × 16,786.71
4. Step 4: Simplify right side
   30,934.17x = 716,591,286.31
5. Step 5: Solve for x
   x = 716,591,286.31/30,934.17
6. Step 6: Final answer
   x = 23,165.04