Finding the Fourth Proportional to 28,536.78, 42,800.94 and 11,004.42

Step by Step Solution

1. Step 1: Write the proportion equation
   28,536.78 : 42,800.94 = 11,004.42 : x
2. Step 2: Convert to fraction form
   28,536.78/42,800.94 = 11,004.42/x
3. Step 3: Cross multiply
   28,536.78x = 42,800.94 × 11,004.42
4. Step 4: Simplify right side
   28,536.78x = 470,999,520.15
5. Step 5: Solve for x
   x = 470,999,520.15/28,536.78
6. Step 6: Final answer
   x = 16,505.00