Finding the Fourth Proportional to 30,567.42, 42,184.77 and 17,142.96

Step by Step Solution

1. Step 1: Write the proportion equation
   30,567.42 : 42,184.77 = 17,142.96 : x
2. Step 2: Convert to fraction form
   30,567.42/42,184.77 = 17,142.96/x
3. Step 3: Cross multiply
   30,567.42x = 42,184.77 × 17,142.96
4. Step 4: Simplify right side
   30,567.42x = 723,171,824.72
5. Step 5: Solve for x
   x = 723,171,824.72/30,567.42
6. Step 6: Final answer
   x = 23,658.26