Finding the Fourth Proportional to 42,046.11, 63,069.42 and 12,464.20

Step by Step Solution

1. Step 1: Write the proportion equation
   42,046.11 : 63,069.42 = 12,464.20 : x
2. Step 2: Convert to fraction form
   42,046.11/63,069.42 = 12,464.20/x
3. Step 3: Cross multiply
   42,046.11x = 63,069.42 × 12,464.20
4. Step 4: Simplify right side
   42,046.11x = 786,109,487.10
5. Step 5: Solve for x
   x = 786,109,487.10/42,046.11
6. Step 6: Final answer
   x = 18,696.37