Finding the Fourth Proportional to 30,762.72, 42,452.58 and 16,615.56

Step by Step Solution

1. Step 1: Write the proportion equation
   30,762.72 : 42,452.58 = 16,615.56 : x
2. Step 2: Convert to fraction form
   30,762.72/42,452.58 = 16,615.56/x
3. Step 3: Cross multiply
   30,762.72x = 42,452.58 × 16,615.56
4. Step 4: Simplify right side
   30,762.72x = 705,373,390.14
5. Step 5: Solve for x
   x = 705,373,390.14/30,762.72
6. Step 6: Final answer
   x = 22,929.49