Finding the Fourth Proportional to 42,694.42, 64,044.71 and 16,399.17

Step by Step Solution

1. Step 1: Write the proportion equation
   42,694.42 : 64,044.71 = 16,399.17 : x
2. Step 2: Convert to fraction form
   42,694.42/64,044.71 = 16,399.17/x
3. Step 3: Cross multiply
   42,694.42x = 64,044.71 × 16,399.17
4. Step 4: Simplify right side
   42,694.42x = 1,050,280,086.89
5. Step 5: Solve for x
   x = 1,050,280,086.89/42,694.42
6. Step 6: Final answer
   x = 24,599.94