Finding the Fourth Proportional to 30,658.45, 42,323.97 and 20,064.27

Step by Step Solution

1. Step 1: Write the proportion equation
   30,658.45 : 42,323.97 = 20,064.27 : x
2. Step 2: Convert to fraction form
   30,658.45/42,323.97 = 20,064.27/x
3. Step 3: Cross multiply
   30,658.45x = 42,323.97 × 20,064.27
4. Step 4: Simplify right side
   30,658.45x = 849,199,561.55
5. Step 5: Solve for x
   x = 849,199,561.55/30,658.45
6. Step 6: Final answer
   x = 27,698.71