Finding the Fourth Proportional to 30,914.63, 42,662.18 and 16,767.57

Step by Step Solution

1. Step 1: Write the proportion equation
   30,914.63 : 42,662.18 = 16,767.57 : x
2. Step 2: Convert to fraction form
   30,914.63/42,662.18 = 16,767.57/x
3. Step 3: Cross multiply
   30,914.63x = 42,662.18 × 16,767.57
4. Step 4: Simplify right side
   30,914.63x = 715,341,089.50
5. Step 5: Solve for x
   x = 715,341,089.50/30,914.63
6. Step 6: Final answer
   x = 23,139.24