Finding the Fourth Proportional to 10,454.42, 15,680.28 and 2,662.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,454.42 : 15,680.28 = 2,662.76 : x
2. Step 2: Convert to fraction form
   10,454.42/15,680.28 = 2,662.76/x
3. Step 3: Cross multiply
   10,454.42x = 15,680.28 × 2,662.76
4. Step 4: Simplify right side
   10,454.42x = 41,752,822.37
5. Step 5: Solve for x
   x = 41,752,822.37/10,454.42
6. Step 6: Final answer
   x = 3,993.80