Finding the Fourth Proportional to 30,762.78, 42,452.61 and 16,615.62

Step by Step Solution

1. Step 1: Write the proportion equation
   30,762.78 : 42,452.61 = 16,615.62 : x
2. Step 2: Convert to fraction form
   30,762.78/42,452.61 = 16,615.62/x
3. Step 3: Cross multiply
   30,762.78x = 42,452.61 × 16,615.62
4. Step 4: Simplify right side
   30,762.78x = 705,376,435.77
5. Step 5: Solve for x
   x = 705,376,435.77/30,762.78
6. Step 6: Final answer
   x = 22,929.54