Finding the Fourth Proportional to 42,606.63, 63,919.18 and 16,311.38

Step by Step Solution

1. Step 1: Write the proportion equation
   42,606.63 : 63,919.18 = 16,311.38 : x
2. Step 2: Convert to fraction form
   42,606.63/63,919.18 = 16,311.38/x
3. Step 3: Cross multiply
   42,606.63x = 63,919.18 × 16,311.38
4. Step 4: Simplify right side
   42,606.63x = 1,042,609,643.31
5. Step 5: Solve for x
   x = 1,042,609,643.31/42,606.63
6. Step 6: Final answer
   x = 24,470.59