Finding the Fourth Proportional to 30,909.42, 42,654.96 and 16,762.24

Step by Step Solution

1. Step 1: Write the proportion equation
   30,909.42 : 42,654.96 = 16,762.24 : x
2. Step 2: Convert to fraction form
   30,909.42/42,654.96 = 16,762.24/x
3. Step 3: Cross multiply
   30,909.42x = 42,654.96 × 16,762.24
4. Step 4: Simplify right side
   30,909.42x = 714,992,676.71
5. Step 5: Solve for x
   x = 714,992,676.71/30,909.42
6. Step 6: Final answer
   x = 23,131.87