Finding the Fourth Proportional to 10,850.56, 16,275.72 and 2,642.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,850.56 : 16,275.72 = 2,642.56 : x
2. Step 2: Convert to fraction form
   10,850.56/16,275.72 = 2,642.56/x
3. Step 3: Cross multiply
   10,850.56x = 16,275.72 × 2,642.56
4. Step 4: Simplify right side
   10,850.56x = 43,009,566.64
5. Step 5: Solve for x
   x = 43,009,566.64/10,850.56
6. Step 6: Final answer
   x = 3,963.81