Finding the Fourth Proportional to 42,666.42, 64,007.87 and 16,369.11

Step by Step Solution

1. Step 1: Write the proportion equation
   42,666.42 : 64,007.87 = 16,369.11 : x
2. Step 2: Convert to fraction form
   42,666.42/64,007.87 = 16,369.11/x
3. Step 3: Cross multiply
   42,666.42x = 64,007.87 × 16,369.11
4. Step 4: Simplify right side
   42,666.42x = 1,047,752,055.15
5. Step 5: Solve for x
   x = 1,047,752,055.15/42,666.42
6. Step 6: Final answer
   x = 24,556.83