Finding the Fourth Proportional to 30,763.15, 42,453.18 and 16,615.99

Step by Step Solution

1. Step 1: Write the proportion equation
   30,763.15 : 42,453.18 = 16,615.99 : x
2. Step 2: Convert to fraction form
   30,763.15/42,453.18 = 16,615.99/x
3. Step 3: Cross multiply
   30,763.15x = 42,453.18 × 16,615.99
4. Step 4: Simplify right side
   30,763.15x = 705,401,667.41
5. Step 5: Solve for x
   x = 705,401,667.41/30,763.15
6. Step 6: Final answer
   x = 22,930.09