Finding the Fourth Proportional to 42,046.72, 63,068.25 and 10,456.12

Step by Step Solution

1. Step 1: Write the proportion equation
   42,046.72 : 63,068.25 = 10,456.12 : x
2. Step 2: Convert to fraction form
   42,046.72/63,068.25 = 10,456.12/x
3. Step 3: Cross multiply
   42,046.72x = 63,068.25 × 10,456.12
4. Step 4: Simplify right side
   42,046.72x = 659,449,190.19
5. Step 5: Solve for x
   x = 659,449,190.19/42,046.72
6. Step 6: Final answer
   x = 15,683.72