Finding the Fourth Proportional to 42,018.75, 63,029.34 and 10,854

Step by Step Solution

1. Step 1: Write the proportion equation
   42,018.75 : 63,029.34 = 10,854 : x
2. Step 2: Convert to fraction form
   42,018.75/63,029.34 = 10,854/x
3. Step 3: Cross multiply
   42,018.75x = 63,029.34 × 10,854
4. Step 4: Simplify right side
   42,018.75x = 684,120,456.36
5. Step 5: Solve for x
   x = 684,120,456.36/42,018.75
6. Step 6: Final answer
   x = 16,281.31