Finding the Fourth Proportional to 10,854.34, 14,978.52 and 6,074.73

Step by Step Solution

1. Step 1: Write the proportion equation
   10,854.34 : 14,978.52 = 6,074.73 : x
2. Step 2: Convert to fraction form
   10,854.34/14,978.52 = 6,074.73/x
3. Step 3: Cross multiply
   10,854.34x = 14,978.52 × 6,074.73
4. Step 4: Simplify right side
   10,854.34x = 90,990,464.80
5. Step 5: Solve for x
   x = 90,990,464.80/10,854.34
6. Step 6: Final answer
   x = 8,382.87